| Title | Venue | Year | Impact | Source |
| 3201 | Suicide Mortality and COVID-19-A Perfect Storm? N/A | JAMA Psychiatry | 2020 | | LitCov and CORD-19 |
| 3202 | Using Smartphones and Wearable Devices to Monitor Behavioral Changes During COVID-19 BACKGROUND: In the absence of a vaccine or effective treatment for COVID-19, countries have adopted nonpharmaceutical interventions (NPIs) such as social distancing and full lockdown. An objective and quantitative means of passively monitoring the impact and response of these interventions at a local level is needed. OBJECTIVE: We aim to explore the utility of the recently developed open-source mobile health platform Remote Assessment of Disease and Relapse (RADAR)–base as a toolbox to rapidly test the effect and response to NPIs intended to limit the spread of COVID-19. METHODS: We analyzed data extracted from smartphone and wearable devices, and managed by the RADAR-base from 1062 participants recruited in Italy, Spain, Denmark, the United Kingdom, and the Netherlands. We derived nine features on a daily basis including time spent at home, maximum distance travelled from home, the maximum number of Bluetooth-enabled nearby devices (as a proxy for physical distancing), step count, average heart rate, sleep duration, bedtime, phone unlock duration, and social app use duration. We performed Kruskal-Wallis tests followed by post hoc Dunn tests to assess differences in these features among baseline, prelockdown, and during lockdown periods. We also studied behavioral differences by age, gender, BMI, and educational background. RESULTS: We were able to quantify expected changes in time spent at home, distance travelled, and the number of nearby Bluetooth-enabled devices between prelockdown and during lockdown periods (P<.001 for all five countries). We saw reduced sociality as measured through mobility features and increased virtual sociality through phone use. People were more active on their phones (P<.001 for Italy, Spain, and the United Kingdom), spending more time using social media apps (P<.001 for Italy, Spain, the United Kingdom, and the Netherlands), particularly around major news events. Furthermore, participants had a lower heart rate (P<.001 for Italy and Spain; P=.02 for Denmark), went to bed later (P<.001 for Italy, Spain, the United Kingdom, and the Netherlands), and slept more (P<.001 for Italy, Spain, and the United Kingdom). We also found that young people had longer homestay than older people during the lockdown and fewer daily steps. Although there was no significant difference between the high and low BMI groups in time spent at home, the low BMI group walked more. CONCLUSIONS: RADAR-base, a freely deployable data collection platform leveraging data from wearables and mobile technologies, can be used to rapidly quantify and provide a holistic view of behavioral changes in response to public health interventions as a result of infectious outbreaks such as COVID-19. RADAR-base may be a viable approach to implementing an early warning system for passively assessing the local compliance to interventions in epidemics and pandemics, and could help countries ease out of lockdown. | J Med Internet Res | 2020 | | LitCov and CORD-19 |
| 3203 | The Long Road Towards COVID-19 Herd Immunity: Vaccine Platform Technologies and Mass Immunization Strategies There is an urgent need for effective countermeasures against the current emergence and accelerating expansion of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Induction of herd immunity by mass vaccination has been a very successful strategy for preventing the spread of many infectious diseases, hence protecting the most vulnerable population groups unable to develop immunity, for example individuals with immunodeficiencies or a weakened immune system due to underlying medical or debilitating conditions. Therefore, vaccination represents one of the most promising counter-pandemic measures to COVID-19. However, to date, no licensed vaccine exists, neither for SARS-CoV-2 nor for the closely related SARS-CoV or Middle East respiratory syndrome-CoV. In addition, a few vaccine candidates have only recently entered human clinical trials, which hampers the progress in tackling COVID-19 infection. Here, we discuss potential prophylactic interventions for SARS-CoV-2 with a focus on the challenges existing for vaccine development, and we review pre-clinical progress and ongoing human clinical trials of COVID-19 vaccine candidates. Although COVID-19 vaccine development is currently accelerated via so-called fast-track programs, vaccines may not be timely available to have an impact on the first wave of the ongoing COVID-19 pandemic. Nevertheless, COVID-19 vaccines will be essential in the future for reducing morbidity and mortality and inducing herd immunity, if SARS-CoV-2 becomes established in the population like for example influenza virus. | Front Immunol | 2020 | | LitCov and CORD-19 |
| 3204 | A functional chitosan-based hydrogel as a wound dressing and drug delivery system in the treatment of wound healing N/A | RSC Adv | 2018 | | CORD-19 |
| 3205 | Successful recovery of COVID-19 pneumonia in a renal transplant recipient with long-term immunosuppression The current outbreak of Coronavirus Disease 2019 (COVID‐19) has raised great concern worldwide, but its impact on transplant recipients is unknown. We report here the clinical features and therapeutic course of the first reported renal transplant recipient with confirmed COVID‐19 pneumonia. This is a 52‐year‐old man who received kidney transplantation 12 years ago. His overall clinical characteristics (symptoms, laboratory examinations, and chest CT) were similar to those of non‐transplanted COVID‐19 patients. Following a treatment regimen consisting of reduced immunosuppressant use and low dose methylprednisolone‐based therapy, the COVID‐19 pneumonia in this long‐term immunosuppressive patient was successfully recovered. This effectively treated case has reference value for the future treatment of other transplant patients with COVID‐19 pneumonia. | Am J Transplant | 2020 | | LitCov and CORD-19 |
| 3206 | Herd immunity-estimating the level required to halt the COVID-19 epidemics in affected countries | J Infect | 2020 | | LitCov and CORD-19 |
| 3207 | Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body fluids in healthcare staff N/A | Cochrane Database Syst Rev | 2020 | | LitCov and CORD-19 |
| 3208 | COVID-19 pandemic: Effects and evidence-based recommendations for otolaryngology and head and neck surgery practice The 2019 novel coronavirus disease (COVID‐19) is a highly contagious zoonosis produced by SARS‐CoV‐2 that is spread human‐to‐human by respiratory secretions. It was declared by the WHO as a public health emergency. The most susceptible populations, needing mechanical ventilation, are the elderly and people with associated comorbidities. There is an important risk of contagion for anesthetists, dentists, head and neck surgeons, maxillofacial surgeons, ophthalmologists, and otolaryngologists. Health workers represent between 3.8% and 20% of the infected population; some 15% will develop severe complaints and among them, many will lose their lives. A large number of patients do not have overt signs and symptoms (fever/respiratory), yet pose a real risk to surgeons (who should know this fact and must therefore apply respiratory protective strategies for all patients they encounter). All interventions that have the potential to aerosolize aerodigestive secretions should be avoided or used only when mandatory. Health workers who are: pregnant, over 55 to 65 years of age, with a history of chronic diseases (uncontrolled hypertension, diabetes mellitus, chronic obstructive pulmonary diseases, and all clinical scenarios where immunosuppression is feasible, including that induced to treat chronic inflammatory conditions and organ transplants) should avoid the clinical attention of a potentially infected patient. Health care facilities should prioritize urgent and emergency visits and procedures until the present condition stabilizes; truly elective care should cease and discussed on a case‐by‐case basis for patients with cancer. For those who are working with COVID‐19 infected patients' isolation is compulsory in the following settings: (a) unprotected close contact with COVID‐19 pneumonia patients; (b) onset of fever, cough, shortness of breath, and other symptoms (gastrointestinal complaints, anosmia, and dysgeusia have been reported in a minority of cases). For any care or intervention in the upper aerodigestive tract region, irrespective of the setting and a confirmed diagnosis (eg, rhinoscopy or flexible laryngoscopy in the outpatient setting and tracheostomy or rigid endoscopy under anesthesia), it is strongly recommended that all health care personnel wear personal protective equipment such as N95, gown, cap, eye protection, and gloves. The procedures described are essential in trying to maintain safety of health care workers during COVID‐19 pandemic. In particular, otolaryngologists, head and neck, and maxillofacial surgeons are per se exposed to the greatest risk of infection while caring for COVID‐19 positive subjects, and their protection should be considered a priority in the present circumstances. | Head Neck | 2020 | | LitCov and CORD-19 |
| 3209 | Uptrend in distress and psychiatric symptomatology in pregnant women during the COVID-19 pandemic N/A | Acta Obstet Gynecol Scand | 2020 | | LitCov and CORD-19 |
| 3210 | The Ministry of Health N/A | Hospital (Lond 1886) | 1920 | | CORD-19 |
| 3211 | Communicating the Risk of Death from Novel Coronavirus Disease To understand the severity of infection for a given disease, it is common epidemiological practice to estimate the case fatality risk, defined as the risk of death among cases. However, there are three technical obstacles that should be addressed to appropriately measure this risk. First, division of the cumulative number of deaths by that of cases tends to underestimate the actual risk because deaths that will occur have not yet observed, and so the delay in time from illness onset to death must be addressed. Second, the observed dataset of reported cases represents only a proportion of all infected individuals and there can be a substantial number of asymptomatic and mildly infected individuals who are never diagnosed. Third, ascertainment bias and risk of death among all those infected would be smaller when estimated using shorter virus detection windows and less sensitive diagnostic laboratory tests. In the ongoing COVID-19 epidemic, health authorities must cope with the uncertainty in the risk of death from COVID-19, and high-risk individuals should be identified using approaches that can address the abovementioned three problems. Although COVID-19 involves mostly mild infections among the majority of the general population, the risk of death among young adults is higher than that of seasonal influenza, and elderly with underlying comorbidities require additional care. | J Clin Med | 2020 | | LitCov and CORD-19 |
| 3212 | Rehabilitation of patients post-COVID-19 infection: a literature review Rehabilitation is important for patients with coronavirus disease 2019 (COVID-19) infection. Given the lack of guidelines in English on the rehabilitation of these patients, we conducted a review of the most recent reports. We performed this literature review using the principal research databases and included randomized trials, recommendations, quasi-randomized or prospective controlled clinical trials, reports, guidelines, field updates, and letters to the editor. We identified 107 studies in the database search, among which 85 were excluded after screening the full text or abstract. In total, 22 studies were finally included. The complexity of the clinical setting and the speed of spread of the severe acute respiratory syndrome coronavirus 2, which leads to rapid occupation of beds in the intensive care unit, make it necessary to discharge patients with COVID-19 who have mild symptoms as soon as possible. For these reasons, it is necessary to formulate rehabilitation programs for these patients, to help them restore physical and respiratory function and to reduce anxiety and depression, particularly patients with comorbidities and those who live alone or in rural settings, to restore a good quality of life. | J Int Med Res | 2020 | | LitCov and CORD-19 |
| 3213 | SARS-CoV-2: should inhibitors of the renin-angiotensin system be withdrawn in patients with COVID-19? | Eur Heart J | 2020 | | LitCov and CORD-19 |
| 3214 | Early Impacts of the COVID-19 Pandemic on the United States Construction Industry The COVID-19 pandemic has been the largest global health crisis in decades. Apart from the unprecedented number of deaths and hospitalizations, the pandemic has resulted in economic slowdowns, widespread business disruptions, and significant hardships. This study focused on investigating the early impacts of the COVID-19 pandemic on the U.S. construction industry since the declaration of the national emergency on 13 March 2020. The study objectives were achieved through 34 telephone interviews with project managers, engineers, designers, and superintendents that represented different states and distinct industry sectors in the United States (U.S.). The interviewees offered information on their experience with the pandemic, including the general and adverse effects experienced, new opportunities created, and risk management efforts being undertaken. The reported adverse effects included significant delays on projects, inability to secure materials on time, reduction in productivity rates, material price escalations, and others. The new opportunities that were created included projects involving the fast-track construction of medical facilities, construction of residential buildings, transportation-related work, and opportunities to recruit skilled workers. The risk management measures that were widely adopted included measures to enhance safety and reduce other project risks. The safety measures adopted included requiring employees to wear cloth face masks, adoption of social distancing protocols, staggering of construction operations, offering COVID-19-related training, administering temperature checks prior to entry into the workplace, and others. Measures to manage other project risks included the formation of a task force team to review the evolving pandemic and offer recommendations, advocating that construction businesses be deemed essential to combat delays and taking advantage of government relief programs. The study findings will be useful to industry stakeholders interested in understanding the early impacts of the pandemic on the construction industry. Industry stakeholders may also build upon the reported findings and establish best practices for continued safe and productive operations. | Int J Environ Res Public Healt | 2021 | | LitCov and CORD-19 |
| 3215 | Predictors of mortality in hospitalized COVID-19 patients: A systematic review and meta-analysis Mortality rates of coronavirus disease 2019 (COVID‐19) continue to rise across the world. Information regarding the predictors of mortality in COVID‐19 patients remains scarce. Herein, we performed a systematic review of published articles, from January 1 to April 24, 2020, to evaluate the risk factors associated with mortality in COVID‐19. Two investigators independently searched the articles and collected the data, in accordance with PRISMA guidelines. We looked for associations between mortality and patient characteristics, comorbidities, and laboratory abnormalities. A total of 14 studies documenting the outcomes of 4659 patients were included. The presence of comorbidities such as hypertension (OR 2.5; 95% CI 2.1‐3.1; P<0.00001), coronary heart disease (OR 3.8; 95% CI 2.1‐6.9; P<0.00001) and diabetes (OR 2.0; 95% CI 1.7‐2.3; P<0.00001) were associated with significantly higher risk of death amongst COVID‐19 patients. Those who died, compared to those who survived, differed on multiple biomarker levels on admission including elevated levels of cardiac troponin (+44.2 ng/L, 95% CI 19.0‐69.4; P=0.0006); C‐reactive protein (+66.3 µg/mL, 95% CI 46.7‐85.9; P<0.00001); interleukin‐6 (+4.6 ng/mL, 95% CI 3.6‐5.6; P<0.00001); D‐dimer (+4.6 µg/mL, 95% CI 2.8‐6.4; P<0.00001); creatinine (+15.3 µmol/L, 95% CI 6.2‐24.3; P=0.001) and alanine transaminase (+5.7 U/L, 95% CI 2.6‐8.8; P=0.0003); as well as decreased levels of albumin (‐3.7 g/L, 95% CI ‐5.3 to ‐2.1; P<0.00001). Individuals with underlying cardiometabolic disease and that present with evidence for acute inflammation and end‐organ damage are at higher risk of mortality due to COVID‐19 infection and should be managed with greater intensity. This article is protected by copyright. All rights reserved. | J Med Virol | 2020 | | LitCov and CORD-19 |
| 3216 | Neurologic manifestations in hospitalized patients with COVID-19: The ALBACOVID registry N/A | Neurology | 2020 | | LitCov and CORD-19 |
| 3217 | Pregnancy-related anxiety during COVID-19: a nationwide survey of 2740 pregnant women The aim of this study is to explore the impact of the COVID-19 pandemic on pregnant women’s anxiety and identify factors most strongly associated with greater changes in anxiety. An anonymous, online, survey of pregnant women (distributed April 3–24, 2020) included a modified pregnancy-related anxiety scale (PRAS) reflecting respondents’ perception of pregnancy anxiety before COVID-19 and a current assessment of pregnancy-related anxiety. The difference between these scores was used as the outcome variable. Data were analyzed using bivariate and multivariate linear regression analyses. Two thousand seven hundred forty pregnant women from 47 states completed the survey. 25.8% (N = 706) stopped in-person visits, 15.2% used video visits (N = 415), and 31.8% (N = 817) used phone visits for prenatal care as a result of COVID-19. Those planning a hospital birth dropped from 2641 (96.4%) to 2400 (87.7%) following COVID-19. More than half of women reported increased stress about food running out (59.2%, N = 1622), losing a job or household income (63.7%, N = 1745), or loss of childcare (56.3%, N = 1543). More than a third reported increasing stress about conflict between household members (37.5%, N = 1028), and 93% (N = 2556) reported increased stress about getting infected with COVID-19. Slightly less than half of respondents (either selves or family members) were healthcare workers (41.4%, N = 1133) or worked in essential services (45.5%, N = 1246). In multivariate analysis, those reporting higher agreement with COVID-19-related stressors had greater changes in pre- to post-COVID-19 pregnancy-related anxiety. The COVID-19 pandemic is profoundly affecting pregnant women’s mental health, and factors independent of pregnancy appear to be driving changes in pregnancy-specific anxiety. | Arch Womens Ment Health | 2020 | | LitCov and CORD-19 |
| 3218 | Prioritizing candidate disease genes by network-based boosting of genome-wide association data N/A | Genome Res | 2011 | | CORD-19 |
| 3219 | Role of favipiravir in the treatment of COVID-19 The coronavirus disease-2019 (COVID-19) outbreak all over the world has led the researchers to strive to develop drugs or vaccines to prevent or halt the progression of this ailment. To hasten the treatment process, repurposed drugs are being evaluated. Favipiravir is one such oral drug that was approved for new and reemerging pandemic influenza in Japan in 2014 and has shown potent in vitro activity against severe acute respiratory syndrome coronavirus-2. It has a wide therapeutic safety margin indicated by a wide CC50/EC50 ratio for a high dose. From the clinical studies in COVID-19, it has shown rapid viral clearance as compared to lopinavir/ritonavir (LPV/RTV) and superior recovery rate than umifenovir. Overall, favipiravir has shown promising results in clinical studies in China, Russia, and Japan, and more trials are underway in multiple countries, including USA, UK, and India. Recently, treatment guidelines from many countries and some states from India have included favipiravir in the treatment protocol. This review provides insights into the evidence-based evolving role of favipiravir in the management of COVID-19 infection with emphasis on benefits of initiating an early antiviral therapy with special focus on favipiravir, its pharmacodynamic, pharmacokinetic, in vitro, clinical data, and inclusion in the treatment protocols of COVID-19. | Int J Infect Dis | 2020 | | LitCov and CORD-19 |
| 3220 | Coping With Stress and Burnout Associated With Telecommunication and Online Learning The COVID-19 pandemic substantially impacted the field of telecommunication. It increased the use of media applications that enable teleconferencing, telecommuting, online learning, and social relations. Prolonged time facing screens, tablets, and smart devices increases stress and anxiety. Mental health stressors associated with telecommunication can add to other stressors related to quarantine time and lockdown to eventually lead to exhaustion and burnout. In this review, the effects of the COVID-19 pandemic on communication and education are explored. In addition, the relationship between prolonged exposure to digital devices and mental health is studied. Finally, coping strategies are offered to help relieve the tele-burdens of pandemics. | Front Public Health | 2020 | | LitCov and CORD-19 |
| 3221 | Conceptualising COVID-19's impacts on household food security COVID-19 undermines food security both directly, by disrupting food systems, and indirectly, through the impacts of lockdowns on household incomes and physical access to food. COVID-19 and responses to the pandemic could undermine food production, processing and marketing, but the most concerning impacts are on the demand-side – economic and physical access to food. This paper identifies three complementary frameworks that can contribute to understanding these effects, which are expected to persist into the post-pandemic phase, after lockdowns are lifted. FAO’s ‘four pillars’– availability, access, stability and utilisation – and the ‘food systems’ approach both provide holistic frameworks for analysing food security. Sen’s ‘entitlement’ approach is useful for disaggregating demand-side effects on household production-, labour-, trade- and transfer-based entitlements to food. Drawing on the strengths of each of these frameworks can enhance the understanding of the pandemic’s impacts on food security, while also pinpointing areas for governments and other actors to intervene in the food system, to protect the food security of households left vulnerable by COVID-19 and public responses. | Food Secur | 2020 | | LitCov and CORD-19 |
| 3222 | SARS to novel coronavirus-old lessons and new lessons The response to the novel coronavirus outbreak in China suggests that many of the lessons from the 2003 SARS epidemic have been implemented and the response improved as a consequence. Nevertheless some questions remain and not all lessons have been successful. The national and international response demonstrates the complex link between public health, science and politics when an outbreak threatens to impact on global economies and reputations. The unprecedented measures implemented in China are a bold attempt to control the outbreak – we need to understand their effectiveness to balance costs and benefits for similar events in the future. | Epidemiol Infect | 2020 | | LitCov and CORD-19 |
| 3223 | Functional SARS-CoV-2-Specific Immune Memory Persists after Mild COVID-19 The SARS-CoV-2 virus is causing a global pandemic and cases continue to rise. Most infected individuals experience mildly symptomatic coronavirus disease 2019 (COVID-19), but it is unknown whether this can induce persistent immune memory that could contribute to immunity. We performed a longitudinal assessment of individuals recovered from mild COVID-19 to determine if they develop and sustain multifaceted SARS-CoV-2-specific immunological memory. Recovered individuals developed SARS-CoV-2-specific IgG antibodies, neutralizing plasma, memory B and memory T cells that persisted for at least three months. Our data further reveal that SARS-CoV-2-specific IgG memory B cells increased over time. Additionally, SARS-CoV-2-specific memory lymphocytes exhibited characteristics associated with potent antiviral function: memory T cells secreted cytokines and expanded upon antigen re-encounter, while memory B cells expressed receptors capable of neutralizing virus when expressed as monoclonal antibodies. Therefore, mild COVID-19 elicits memory lymphocytes that persist and display functional hallmarks of antiviral immunity. | Cell | 2020 | | LitCov and CORD-19 |
| 3224 | Breastfeeding and coronavirus disease-2019: Ad interim indications of the Italian Society of Neonatology endorsed by the Union of European Neonatal & Perinatal Societies The recent COVID‐19 pandemic has spread to Italy with heavy consequences on public health and economics. Besides the possible consequences of COVID‐19 infection on a pregnant woman and the fetus, a major concern is related to the potential effect on neonatal outcome, the appropriate management of the mother–newborn dyad, and finally the compatibility of maternal COVID‐19 infection with breastfeeding. The Italian Society on Neonatology (SIN) after reviewing the limited scientific knowledge on the compatibility of breastfeeding in the COVID‐19 mother and the available statements from Health Care Organizations has issued the following indications that have been endorsed by the Union of European Neonatal & Perinatal Societies (UENPS). If a mother previously identified as COVID‐19 positive or under investigation for COVID‐19 is asymptomatic or paucisymptomatic at delivery, rooming‐in is feasible, and direct breastfeeding is advisable, under strict measures of infection control. On the contrary, when a mother with COVID‐19 is too sick to care for the newborn, the neonate will be managed separately and fed fresh expressed breast milk, with no need to pasteurize it, as human milk is not believed to be a vehicle of COVID‐19. We recognize that this guidance might be subject to change in the future when further knowledge will be acquired about the COVID‐19 pandemic, the perinatal transmission of SARS‐CoV‐2, and clinical characteristics of cases of neonatal COVID‐19. | Matern Child Nutr | 2020 | | LitCov and CORD-19 |
| 3225 | Older people and COVID-19: Isolation, risk and ageism N/A | J Clin Nurs | 2020 | | LitCov and CORD-19 |
| 3226 | Positive and Negative Changes in Food Habits, Physical Activity Patterns and Weight Status during COVID-19 Confinement: Associated Factors in the Chilean Population The association between the changes in lifestyle during coronavirus disease 2019 (COVID-19) confinement and body weight have not been studied deeply. Therefore, the aim of the present study was to determine lifestyle changes, such as eating habits and physical activity (PA) patterns, caused by confinement during the COVID-19 pandemic and to analyze its association with changes in body weight. Seven hundred participants (women, n = 528 and men, n = 172) aged between 18–62 years old of the Chilean national territory participated in the study. Food habits, PA, body weight, and sociodemographic variables were measured through a survey in May and June 2020. The body weight increase presented positive association with the consumption of fried foods ≥ 3 times per week (OR; 3.36, p < 0.001), low water consumption (OR; 1.58, p = 0.03), and sedentary time ≥6 h/day (OR; 1.85, p = 0.01). Conversely, fish consumed (OR; 0.67, p = 0.03), active breaks (OR; 0.72, p = 0.04), and PA ≥ 4 times per week (OR; 0.51, p = 0.001) presented an inverse association with body weight increase. Daily alcohol consumption (OR; 4.77, p = 0.003) was associated with PA decrease. Food habits, PA, and active breaks may be protective factors for weight increase during COVID-19 confinement. | Int J Environ Res Public Healt | 2020 | | LitCov and CORD-19 |
| 3227 | Implications of COVID-19 for patients with pre-existing digestive diseases | Lancet Gastroenterol Hepatol | 2020 | | LitCov and CORD-19 |
| 3228 | Structure-based design of prefusion-stabilized SARS-CoV-2 spikes The COVID-19 pandemic has led to accelerated efforts to develop therapeutics and vaccines. A key target of these efforts is the spike (S) protein, which is metastable and difficult to produce recombinantly. Here, we characterized 100 structure-guided spike designs and identified 26 individual substitutions that increased protein yields and stability. Testing combinations of beneficial substitutions resulted in the identification of HexaPro, a variant with six beneficial proline substitutions exhibiting ~10-fold higher expression than its parental construct and the ability to withstand heat stress, storage at room temperature, and three freeze-thaw cycles. A 3.2 Å-resolution cryo-EM structure of HexaPro confirmed that it retains the prefusion spike conformation. High-yield production of a stabilized prefusion spike protein will accelerate the development of vaccines and serological diagnostics for SARS-CoV-2. | Science | 2020 | | LitCov and CORD-19 |
| 3229 | Transmission of SARS-CoV-2 on mink farms between humans and mink and back to humans Animal experiments have shown that nonhuman primates, cats, ferrets, hamsters, rabbits, and bats can be infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In addition, SARS-CoV-2 RNA has been detected in felids, mink, and dogs in the field. Here, we describe an in-depth investigation using whole-genome sequencing of outbreaks on 16 mink farms and the humans living or working on these farms. We conclude that the virus was initially introduced by humans and has since evolved, most likely reflecting widespread circulation among mink in the beginning of the infection period, several weeks before detection. Despite enhanced biosecurity, early warning surveillance, and immediate culling of animals in affected farms, transmission occurred between mink farms in three large transmission clusters with unknown modes of transmission. Of the tested mink farm residents, employees, and/or individuals with whom they had been in contact, 68% had evidence of SARS-CoV-2 infection. Individuals for which whole genomes were available were shown to have been infected with strains with an animal sequence signature, providing evidence of animal-to-human transmission of SARS-CoV-2 within mink farms. | Science | 2020 | | LitCov and CORD-19 |
| 3230 | Mental health during the COVID-19 pandemic: Effects of stay-at-home policies, social distancing behavior and social resources Social distancing is the most visible public health response to the COVID-19 pandemic, but its implications for mental health are unknown. In a nationwide online sample of 435 U.S. adults, conducted in March 2020 as the pandemic accelerated and states implemented stay-at-home orders, we examined whether stay-at-home orders and individuals’ personal distancing behavior were associated with symptoms of depression, generalized anxiety disorder (GAD), intrusive thoughts, insomnia, and acute stress. Stay-at-home order status and personal distancing were independently associated with higher symptoms, beyond protective effects of available social resources (social support and social network size). A subsample of 118 participants who had completed symptom measures earlier in the outbreak (February 2020) showed increases in depression and GAD between February and March, and personal distancing behavior was associated with these increases. Findings suggest that there are negative mental health correlates of social distancing, which should be addressed in research, policy, and clinical approaches to the COVID-19 pandemic. | Psychiatry Res | 2020 | | LitCov and CORD-19 |
| 3231 | Acute kidney injury in critically ill patients with COVID-19 Acute kidney injury (AKI) has been reported in up to 25% of critically-ill patients with SARS-CoV-2 infection, especially in those with underlying comorbidities. AKI is associated with high mortality rates in this setting, especially when renal replacement therapy is required. Several studies have highlighted changes in urinary sediment, including proteinuria and hematuria, and evidence of urinary SARS-CoV-2 excretion, suggesting the presence of a renal reservoir for the virus. The pathophysiology of COVID-19 associated AKI could be related to unspecific mechanisms but also to COVID-specific mechanisms such as direct cellular injury resulting from viral entry through the receptor (ACE2) which is highly expressed in the kidney, an imbalanced renin–angotensin–aldosteron system, pro-inflammatory cytokines elicited by the viral infection and thrombotic events. Non-specific mechanisms include haemodynamic alterations, right heart failure, high levels of PEEP in patients requiring mechanical ventilation, hypovolemia, administration of nephrotoxic drugs and nosocomial sepsis. To date, there is no specific treatment for COVID-19 induced AKI. A number of investigational agents are being explored for antiviral/immunomodulatory treatment of COVID-19 and their impact on AKI is still unknown. Indications, timing and modalities of renal replacement therapy currently rely on non-specific data focusing on patients with sepsis. Further studies focusing on AKI in COVID-19 patients are urgently warranted in order to predict the risk of AKI, to identify the exact mechanisms of renal injury and to suggest targeted interventions. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00134-020-06153-9) contains supplementary material, which is available to authorized users. | Intensive Care Med | 2020 | | LitCov and CORD-19 |
| 3232 | How should we understand the digital economy in Asia? Critical assessment and research agenda By Asian digital economy, we refer to high-tech developments, business and social transformations, and information-driven changes in the region’s growth. We discuss its background and foundations, significance in Asia and contribution to removal of historical barriers in traditional business. We assess how new value chains are transforming country-level involvement in worldwide manufacturing and note “smiling curve theory” predictions about the global value chain in Asia for high-tech firms and their economies. The takeaway is that the digital economy in Asian nations involves revamping business processes through technology innovation, government policies for growth, and digital entrepreneurship. We analyze the “digital economy and society index”, and attributes of nations, societies and economies, as a basis for framing our ideas. We consider research directions prompted by data analytics and AI, the platform economy, digital trade, fintech innovation, and societal and economic sustainability. We further highlight new issues in light of the COVID-19 pandemic. | Electron Commer Res Appl | 2020 | | LitCov and CORD-19 |
| 3233 | Effective containment explains subexponential growth in recent confirmed COVID-19 cases in China The recent outbreak of COVID-19 in Mainland China was characterized by a distinctive subexponential increase of confirmed cases during the early phase of the epidemic, contrasting an initial exponential growth expected for an unconstrained outbreak. We show that this effect can be explained as a direct consequence of containment policies that effectively deplete the susceptible population. To this end, we introduce a parsimonious model that captures both, quarantine of symptomatic infected individuals as well as population-wide isolation practices in response to containment policies or behavioral changes and show that the model captures the observed growth behavior accurately. The insights provided here may aid the careful implementation of containment strategies for ongoing secondary outbreaks of COVID-19 or similar future outbreaks of other emergent infectious diseases. | Science | 2020 | | LitCov and CORD-19 |
| 3234 | Impact of Human Disasters and COVID-19 Pandemic on Mental Health: Potential of Digital Psychiatry N/A | Psychiatr Danub | 2020 | | LitCov and CORD-19 |
| 3235 | Membrane Fusion Membrane fusion of enveloped viruses with cellular membranes is mediated by viral glycoproteins, which are activated by proteolytic cleavage and/or interaction with cellular receptors. Fusion entails extensive conformational changes of the fusion protein that initially anchors to cellular membranes thus bridging two bilayers. Further refolding into a hairpin-like structure pulls viral and cellular membranes into close proximity to permit lipid bilayer fusion. Refolding provides the energy for fusion, which follows several defined lipidic intermediate states occurring concomitantly with refolding. Although different classes of fusion proteins use different structural motifs, the principle of repositioning both membrane anchors, the transmembrane and the fusion peptide region, at the same end of an elongated hairpin structure generated by receptor binding is maintained in all known viral fusion protein structures, suggesting that they follow similar principles to achieve lipid bilayer fusion. | Encyclopedia of Virology | 2008 | | CORD-19 |
| 3236 | How and why patients made Long Covid Patients collectively made Long Covid – and cognate term ‘long-haul Covid’ – in the first months of the pandemic. Patients, many with initially ‘mild’ illness, used various kinds of evidence and advocacy to demonstrate a longer, more complex course of illness than laid out in initial reports from Wuhan. Long Covid has a strong claim to be the first illness created through patients finding one another on social media: it moved from patients, through various media, to formal clinical and policy channels in just a few months. This initial mapping of Long Covid – by two patients with this illness – focuses on actors in the UK and USA and demonstrates how patients marshalled epistemic authority. Patient knowledge needs to be incorporated into how COVID-19 is conceptualised, researched, and treated. | Soc Sci Med | 2021 | | LitCov and CORD-19 |
| 3237 | Coronavirus: Why Men are More Vulnerable to Covid-19 Than Women? Amid of coronavirus disease 2019 (Covid-19) pandemic, much emphasis was initially placed on the elderly or those who have preexisting health conditions such as obesity, hypertension, and diabetes as being at high risk of contracting and/or dying of Covid-19. But it is now becoming clear that being male is also a factor. The epidemiological findings reported across different parts of the world indicated higher morbidity and mortality in males than females. While it is still too early to determine why the gender gap is emerging, this article point to several possible factors such as higher expression of angiotensin-converting enzyme-2 (ACE 2; receptors for coronavirus) in male than female, sex-based immunological differences driven by sex hormone and X chromosome. Furthermore, a large part of this difference in number of deaths is caused by gender behavior (lifestyle), i.e., higher levels of smoking and drinking among men compared to women. Lastly, studies reported that women had more responsible attitude toward the Covid-19 pandemic than men. Irresponsible attitude among men reversibly affect their undertaking of preventive measures such as frequent handwashing, wearing of face mask, and stay at home orders. | SN Compr Clin Med | 2020 | | LitCov and CORD-19 |
| 3238 | Experience of e-learning and online assessment during the COVID-19 pandemic at the College of Medicine, Qassim University OBJECTIVES: During the COVID-19 pandemic, academic institutions are promptly shifting all educational activities to the e-learning format. The present work describes concurrent procedures for online teaching and assessment performed at the College of Medicine, Qassim University, KSA. We also explored the impact of e-learning and assessment on the performance of students and faculty, and the challenges to their sustainability. METHODS: In this descriptive cross-sectional study, we recorded the number and duration of different online educational activities during the COVID-19 pandemic. Training sessions for various procedures of virtual classrooms and online assessments were organised for teachers and students. A newly established e-assessment committee arranged different online assessments. A comparison between the mean problem-based learning (PBL) grades of the same students was conducted either face-to-face or online. A student satisfaction survey and online staff focus group about the online learning experiences were conducted, and weekly staff perception reports were prepared. The results obtained were then analysed. RESULTS: A total of 620 virtual classrooms were successfully implemented over 994 h including theoretical lectures, PBL sessions, seminars, and tutorials. A significant increase in the mean PBL grades was observed for female students during the online sessions. Out of the basic year students and staff, 58.82% reflected their high satisfaction towards virtual classrooms, online assessment, and online workshops. CONCLUSION: The present study elaborates on the benefits of e-learning and assessment. We observed higher student achievements and promising staff perceptions with obvious improvement in their technological skills. These findings support the shift towards future implementation of more online medical courses. | J Taibah Univ Med Sci | 2020 | | LitCov and CORD-19 |
| 3239 | The effect of temperature on persistence of SARS-CoV-2 on common surfaces BACKGROUND: The rate at which COVID-19 has spread throughout the globe has been alarming. While the role of fomite transmission is not yet fully understood, precise data on the environmental stability of SARS-CoV-2 is required to determine the risks of fomite transmission from contaminated surfaces. METHODS: This study measured the survival rates of infectious SARS-CoV-2, suspended in a standard ASTM E2197 matrix, on several common surface types. All experiments were carried out in the dark, to negate any effects of UV light. Inoculated surfaces were incubated at 20 °C, 30 °C and 40 °C and sampled at various time points. RESULTS: Survival rates of SARS-CoV-2 were determined at different temperatures and D-values, Z-values and half-life were calculated. We obtained half lives of between 1.7 and 2.7 days at 20 °C, reducing to a few hours when temperature was elevated to 40 °C. With initial viral loads broadly equivalent to the highest titres excreted by infectious patients, viable virus was isolated for up to 28 days at 20 °C from common surfaces such as glass, stainless steel and both paper and polymer banknotes. Conversely, infectious virus survived less than 24 h at 40 °C on some surfaces. CONCLUSION: These findings demonstrate SARS-CoV-2 can remain infectious for significantly longer time periods than generally considered possible. These results could be used to inform improved risk mitigation procedures to prevent the fomite spread of COVID-19. | Virol J | 2020 | | LitCov and CORD-19 |
| 3240 | Taking control amidst the chaos: Emotion regulation during the COVID-19 pandemic The COVID-19 pandemic represents a major global health crisis that continues to threaten public health and safety. Although the pandemic is still unfolding, measures to reduce the spread of the virus have spawned significant challenges to people's current work as well as their careers more generally. In this commentary, we discuss the implications of COVID-19 for maintaining one's psychological well-being and employment security, and also managing family and work responsibilities. We also bring forth evidence from the emotion regulation literature to help mitigate the downstream negative consequences of COVID-19 on people's work lives. Finally, we offer several suggestions for future scholarly investigation into how this pandemic impacts vocational behavior. | J Vocat Behav | 2020 | | LitCov and CORD-19 |
| 3241 | Alcohol use and misuse during the COVID-19 pandemic: a potential public health crisis? | Lancet Public Health | 2020 | | LitCov and CORD-19 |
| 3242 | The COVID-19 Pandemic and Rapid Implementation of Adolescent and Young Adult Telemedicine: Challenges and Opportunities for Innovation | J Adolesc Health | 2020 | | LitCov and CORD-19 |
| 3243 | Clinical and computed tomographic imaging features of novel coronavirus pneumonia caused by SARS-CoV-2 PURPOSE: To investigate the clinical and imaging characteristics of computed tomography (CT) in novel coronavirus pneumonia (NCP) caused by SARS-CoV-2. MATERIALS AND METHODS: A retrospective analysis was performed on the imaging findings of patients confirmed with COVID-19 pneumonia who had chest CT scanning and treatment after disease onset. The clinical and imaging data were analyzed. RESULTS: Fifty patients were enrolled, including mild type in nine, common in 28, severe in 10 and critically severe in the rest three. Mild patients (29 years) were significantly (P<0.03) younger than either common (44.5 years) or severe (54.7) and critically severe (65.7 years) patients, and common patients were also significantly (P<0.03) younger than severe and critically severe patients. Mild patients had low to moderate fever (<39.1 °C), 49 (98%) patients had normal or slightly reduced leukocyte count, 14 (28%) had decreased counts of lymphocytes, and 26 (52%) patients had increased C-reactive protein. Nine mild patients were negative in CT imaging. For all the other types of NCP, the lesion was in the right upper lobe in 30 cases, right middle lobe in 22, right lower lobe in 39, left upper lobe in 33 and left lower lobe in 36. The lesion was primarily located in the peripheral area under the pleura with possible extension towards the pulmonary hilum. Symmetrical lesions were seen in 26 cases and asymmetrical in 15. The density of lesion was mostly uneven with ground glass opacity as the primary presentation accompanied by partial consolidation and fibrosis. CONCLUSION: CT imaging presentations of NCP are mostly patchy ground glass opacities in the peripheral areas under the pleura with partial consolidation which will be absorbed with formation of fibrotic stripes if improved. CT scanning provides important bases for early diagnosis and treatment of NCP. | J Infect | 2020 | | LitCov and CORD-19 |
| 3244 | Predicting mortality due to SARS-CoV-2: A mechanistic score relating obesity and diabetes to COVID-19 outcomes in Mexico BACKGROUND: The SARS-CoV-2 outbreak poses challenge to healthcare systems due to high complication rates in patients with cardiometabolic diseases. Here, we identify risk factors and propose a clinical score to predict COVID-19 lethality, including specific factors for diabetes and obesity and its role in improving risk prediction. METHODS: We obtained data of confirmed and negative COVID-19 cases and their demographic and health characteristics from the General Directorate of Epidemiology of Mexican Ministry of Health. We investigated specific risk factors associated to COVID-19 positivity and mortality and explored the impact of diabetes and obesity on modifying COVID-19 related lethality. Finally, we built a clinical score to predict COVID-19 lethality. RESULTS: Among 177,133 subjects at May 18(th), 2020, we observed 51,633 subjects with SARS-CoV-2 and 5,332 deaths. Risk factors for lethality in COVID-19 include early-onset diabetes, obesity, COPD, advanced age, hypertension, immunosuppression, and CKD; we observed that obesity mediates 49.5% of the effect of diabetes on COVID-19 lethality. Early-onset diabetes conferred an increased risk of hospitalization and obesity conferred an increased risk for ICU admission and intubation. Our predictive score for COVID-19 lethality included age ≥65 years, diabetes, early-onset diabetes, obesity, age <40 years, CKD, hypertension, and immunosuppression and significantly discriminates lethal from non-lethal COVID-19 cases (c-statistic=0.823). RESULTS: Here, we propose a mechanistic approach to evaluate risk for complications and lethality attributable to COVID-19 considering the effect of obesity and diabetes in Mexico. Our score offers a clinical tool for quick determination of high-risk susceptibility patients in a first contact scenario. | J Clin Endocrinol Metab | 2020 | | LitCov and CORD-19 |
| 3245 | Differential diagnosis of illness in patients under investigation for the novel coronavirus, Italy, February 2020 A novel coronavirus (SARS-CoV-2) has been identified as the causative pathogen of an ongoing outbreak of respiratory disease, now named COVID-19. Most cases and sustained transmission occurred in China, but travel-associated cases have been reported in other countries, including Europe and Italy. Since the symptoms are similar to other respiratory infections, differential diagnosis in travellers arriving from countries with wide-spread COVID-19 must include other more common infections such as influenza and other respiratory tract diseases. | Euro Surveill | 2020 | | LitCov and CORD-19 |
| 3246 | Consensus of Chinese experts on protection of skin and mucous membrane barrier for health-care workers fighting against COVID-19 Health professions preventing and controlling Coronavirus Disease 2019 are prone to skin and mucous membrane injury, which may cause acute and chronic dermatitis, secondary infection and aggravation of underlying skin diseases. This is a consensus of Chinese experts on protective measures and advice on hand‐cleaning‐ and medical‐glove‐related hand protection, mask‐ and goggles‐related face protection, UV‐related protection, eye protection, nasal and oral mucosa protection, outer ear, and hair protection. It is necessary to strictly follow standards of wearing protective equipment and specification of sterilizing and cleaning. Insufficient and excessive protection will have adverse effects on the skin and mucous membrane barrier. At the same time, using moisturizing products is highly recommended to achieve better protection. | Dermatol Ther | 2020 | | LitCov and CORD-19 |
| 3247 | The potential chemical structure of anti-SARS-CoV-2 RNA-dependent RNA polymerase An outbreak of coronavirus disease 2019 (COVID‐19) occurred in Wuhan and it has rapidly spread to almost all parts of the world. For coronaviruses, RNA‐dependent RNA polymerase (RdRp) is an important protease that catalyzes the replication of RNA from RNA template and is an attractive therapeutic target. In this study, we screened these chemical structures from traditional Chinese medicinal compounds proven to show antiviral activity in severe acute respiratory syndrome coronavirus (SARS‐CoV) and the similar chemical structures through a molecular docking study to target RdRp of SARS‐CoV‐2, SARS‐CoV, and Middle East respiratory syndrome coronavirus (MERS‐CoV). We found that theaflavin has a lower idock score in the catalytic pocket of RdRp in SARS‐CoV‐2 (−9.11 kcal/mol), SARS‐CoV (−8.03 kcal/mol), and MERS‐CoV (−8.26 kcal/mol) from idock. To confirm the result, we discovered that theaflavin has lower binding energy of −8.8 kcal/mol when it docks in the catalytic pocket of SARS‐CoV‐2 RdRp by using the Blind Docking server. Regarding contact modes, hydrophobic interactions contribute significantly in binding and additional hydrogen bonds were found between theaflavin and RdRp. Moreover, one π‐cation interaction was formed between theaflavin and Arg553 from the Blind Docking server. Our results suggest that theaflavin could be a potential SARS‐CoV‐2 RdRp inhibitor for further study. | J Med Virol | 2020 | | LitCov and CORD-19 |
| 3248 | Mortality due to cancer treatment delay: systematic review and meta-analysis OBJECTIVE: To quantify the association of cancer treatment delay and mortality for each four week increase in delay to inform cancer treatment pathways. DESIGN: Systematic review and meta-analysis. DATA SOURCES: Published studies in Medline from 1 January 2000 to 10 April 2020. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Curative, neoadjuvant, and adjuvant indications for surgery, systemic treatment, or radiotherapy for cancers of the bladder, breast, colon, rectum, lung, cervix, and head and neck were included. The main outcome measure was the hazard ratio for overall survival for each four week delay for each indication. Delay was measured from diagnosis to first treatment, or from the completion of one treatment to the start of the next. The primary analysis only included high validity studies controlling for major prognostic factors. Hazard ratios were assumed to be log linear in relation to overall survival and were converted to an effect for each four week delay. Pooled effects were estimated using DerSimonian and Laird random effect models. RESULTS: The review included 34 studies for 17 indications (n=1 272 681 patients). No high validity data were found for five of the radiotherapy indications or for cervical cancer surgery. The association between delay and increased mortality was significant (P<0.05) for 13 of 17 indications. Surgery findings were consistent, with a mortality risk for each four week delay of 1.06-1.08 (eg, colectomy 1.06, 95% confidence interval 1.01 to 1.12; breast surgery 1.08, 1.03 to 1.13). Estimates for systemic treatment varied (hazard ratio range 1.01-1.28). Radiotherapy estimates were for radical radiotherapy for head and neck cancer (hazard ratio 1.09, 95% confidence interval 1.05 to 1.14), adjuvant radiotherapy after breast conserving surgery (0.98, 0.88 to 1.09), and cervix cancer adjuvant radiotherapy (1.23, 1.00 to 1.50). A sensitivity analysis of studies that had been excluded because of lack of information on comorbidities or functional status did not change the findings. CONCLUSIONS: Cancer treatment delay is a problem in health systems worldwide. The impact of delay on mortality can now be quantified for prioritisation and modelling. Even a four week delay of cancer treatment is associated with increased mortality across surgical, systemic treatment, and radiotherapy indications for seven cancers. Policies focused on minimising system level delays to cancer treatment initiation could improve population level survival outcomes. | BMJ | 2020 | | CORD-19 |
| 3249 | China coronavirus: WHO declares international emergency as death toll exceeds 200 N/A | BMJ | 2020 | | LitCov and CORD-19 |
| 3250 | Angiotensin-Converting Enzyme 2 (ACE2) Is a Key Modulator of the Renin Angiotensin System in Health and Disease Angiotensin-converting enzyme 2 (ACE2) shares some homology with angiotensin-converting enzyme (ACE) but is not inhibited by ACE inhibitors. The main role of ACE2 is the degradation of Ang II resulting in the formation of angiotensin 1–7 (Ang 1–7) which opposes the actions of Ang II. Increased Ang II levels are thought to upregulate ACE2 activity, and in ACE2 deficient mice Ang II levels are approximately double that of wild-type mice, whilst Ang 1–7 levels are almost undetectable. Thus, ACE2 plays a crucial role in the RAS because it opposes the actions of Ang II. Consequently, it has a beneficial role in many diseases such as hypertension, diabetes, and cardiovascular disease where its expression is decreased. Not surprisingly, current therapeutic strategies for ACE2 involve augmenting its expression using ACE2 adenoviruses, recombinant ACE2 or compounds in these diseases thereby affording some organ protection. | Int J Pept | 2012 | | CORD-19 |
