14,303 results match your criteria covid-19 compared


An automated approach to determine antibody endpoint titers for COVID-19 by an enzyme-linked immunosorbent assay.

Immunohematology 2021 Mar;37(1):33-43

Center for Transfusion Medicine and Cellular Therapies, and Department of Pathology and Laboratory Medicine, Emory University School of Medicine , 201 Dowman Drive, Atlanta, GA 30322 , and Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School , 630E New Research Building, 77 Avenue Louis Pasteur, Boston, MA 02115.

While a variety of therapeutic options continue to emerge for COVID-19 treatment, convalescent plasma (CP) has been used as a possible treatment option early in the pandemic. One of the most significant challenges with CP therapy, however, both when defining its efficacy and implementing its approach clinically, is accurately and efficiently characterizing an otherwise heterogenous therapeutic treatment. Given current limitations, our goal is to leverage a SARS antibody testing platform with a newly developed automated endpoint titer analysis program to rapidly define SARS-CoV-2 antibody levels in CP donors and hospitalized patients. Read More

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COVID-19, Diabetes, and Associated Health Outcomes in China: Results from a Nationwide Survey of 10 545 Adults.

Horm Metab Res 2021 May 7;53(5):301-310. Epub 2021 May 7.

Global Health Institute, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China.

This study examined the associations between diabetes and self-reported/familial COVID-19 infection and investigated health-related outcomes among those with diabetes during China's nationwide quarantine. The 2020 China COVID-19 Survey was administered anonymously via social media (WeChat). It was completed by 10 545 adults in all of mainland China's 31 provinces. Read More

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Trends in depression & anxiety symptom severity among mental health service attendees during the COVID-19 pandemic.

J Affect Disord 2021 Apr 24;289:105-109. Epub 2021 Apr 24.

Centre for Outcomes and Research Effectiveness, Research Department of Clinical, Educational and Health Psychology, University College London, Gower Street, London, UK; Camden & Islington NHS Foundation Trust, St Pancras Hospital, 4 St Pancras Way, London, UK.

Background: General population surveys have shown that some groups, particularly young women, experienced increased distress during nationally mandated restrictions to control the spread of COVID-19. However, there has been limited research on such trends among people with pre-existing mental health conditions, leaving mental health services ill equipped to plan for current and future lockdowns.

Methods: Mean weekly scores on the GAD-7 and PHQ-9 between 01/01/2020-22/06/2020 (n=9,538 individuals) for all patients of two psychological treatment services (Improving Access to Psychological Therapies) in London, were compared to mean weekly scores from the same time periods in 2017-2019 (n=37,849). Read More

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A comparative study of real-time RT-PCR-based SARS-CoV-2 detection methods and its application to human-derived and surface swabbed material.

J Mol Diagn 2021 May 4. Epub 2021 May 4.

Department of Dermatology, University Hospital Zurich and Medical Faculty, University of Zurich, Zurich, Switzerland. Electronic address:

Real-time reverse transcription polymerase chain reaction (RT-PCR) remains a gold standard in detection of various viral diseases. In the COVID-19 pandemic, multiple RT-PCR based tests were developed to screen for viral infection. As an emergency response to growing testing demand, we established a SARS-CoV-2 PCR diagnostics platform for which we compared different commercial and in-house RT-PCR protocols. Read More

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Tissue-Based SARS-Cov-2 Detection in Fatal COVID-19 Infections: Sustained Direct Viral-Induced Damage is Not Necessary to Drive Disease Progression.

Hum Pathol 2021 May 4. Epub 2021 May 4.

Departments of Pathology, Molecular and Cell-Based Medicine, The Icahn School of Medicine at Mount Sinai Hospital, New York, NY. Electronic address:

Background: Coronavirus disease 2019 (COVID-19) is an ongoing pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Although viral infection is known to trigger inflammatory processes contributing to tissue injury and organ failure, it is unclear whether direct viral damage is needed to sustain cellular injury. An understanding of pathogenic mechanisms has been handicapped by the absence of optimized methods to visualize the presence and distribution of SARS-CoV-2 in damaged tissues. Read More

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Asymptomatic COVID-19: disease tolerance with efficient anti-viral immunity against SARS-CoV-2.

EMBO Mol Med 2021 May 7:e14045. Epub 2021 May 7.

A*STAR Infectious Disease Labs (A*STAR ID Labs), Agency for Science, Technology and Research, 8A Biomedical Grove, Immunos, Singapore, 138648.

The immune responses and mechanisms limiting symptom progression in asymptomatic cases of SARS-CoV-2 infection remain unclear. We comprehensively characterized transcriptomic profiles, cytokine responses, neutralization capacity of antibodies and cellular immune phenotypes of asymptomatic patients with acute SARS-CoV-2 infection to identify potential protective mechanisms. Compared to symptomatic patients, asymptomatic patients had higher counts of mature neutrophils and lower proportion of CD169+ expressing monocytes in the peripheral blood. Read More

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Impact of COVID-19 outbreak in acute bronchiolitis: Lesson from a tertiary Italian Emergency Department.

Pediatr Pulmonol 2021 May 7. Epub 2021 May 7.

Department of Pediatrics, Fondazione Policlinico Universitario "A. Gemelli", IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.

Aim: To assess the impact of the coronavirus disease 2019 (COVID-19) outbreak on pediatric emergency department (ED) visits for acute bronchiolitis during the epidemic season.

Methods: A retrospective analytical cross-sectional study was performed in our hospital, analyzing medical charts of all children under 2 years of age with a diagnosis of acute bronchiolitis admitted to our ED in the last years. Demographics and clinical data of patients affected with acute bronchiolitis during the 2020-2021 season-COVID-19 outbreak-were compared to those of the 5 previous years. Read More

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6-Month Respiratory Outcomes and Exercise Capacity of COVID-19 Acute Respiratory Failure Patients Treated With CPAP.

Intern Med J 2021 May 7. Epub 2021 May 7.

Unit of General Medicine and Advanced Care, IRCCS San Raffaele Scientific Institute, Mali.

Background: COVID-19 long-term sequelae are ill-defined since only few studies have explored the long-term consequences of this disease so far.

Objective: to evaluate the 6-month respiratory outcomes and exercise capacity of COVID-19 acute respiratory failure (ARF) patients treated with continuous positive airway pressure (CPAP) during the first wave of the ongoing COVID-19 pandemic.

Design: retrospective observational study. Read More

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Challenges in access and satisfaction with reproductive, maternal, newborn and child health services in Nigeria during the COVID-19 pandemic: A cross-sectional survey.

PLoS One 2021 7;16(5):e0251382. Epub 2021 May 7.

Department of Medical Microbiology, College of Medicine of the University of Lagos, Idi-Araba, Lagos, Nigeria.

Background: The presence of COVID-19 has led to the disruption of health systems globally, including essential reproductive, maternal, newborn and child health (RMNCH) services. This study aimed to assess the challenges faced by women who used RMNCH services in Nigeria's epicentre, their satisfaction with care received during the COVID-19 pandemic and the factors associated with their satisfaction.

Methods: This cross-sectional survey was conducted in Lagos, southwest Nigeria among 1,241 women of reproductive age who had just received RMNCH services at one of twenty-two health facilities across the primary, secondary and tertiary tiers of health care. Read More

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The relative power of individual distancing efforts and public policies to curb the COVID-19 epidemics.

PLoS One 2021 7;16(5):e0250764. Epub 2021 May 7.

GREThA, University of Bordeaux, Bordeaux, France.

Lockdown curbs the COVID-19 epidemics but at huge costs. Public debates question its impact compared to reliance on individual responsibility. We study how rationally chosen self-protective behavior impacts the spread of the epidemics and interacts with policies. Read More

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Does systemic anti-tumor therapy increase COVID-19 risk in patients with cancer?

J Oncol Pharm Pract 2021 May 7:10781552211015762. Epub 2021 May 7.

Department of Medical Oncology, Kartal Dr. Lütfi Kirdar City Hospital, Health Science University, İstanbul, Turkey.

Purpose: We aimed to determine the COVID-19 infection rate and determine the factors that affect hospitalization and prognosis in patients receiving systemic chemotherapy (CT), immunotherapy (IT) and molecular-targeted therapies at our hospital within three months after the onset of COVID-19 pandemic.

Materials And Methods: The patients who received systemic treatment at chemotherapy unit with diagnosis of cancer between 11 March 2020 and 11 June 2020 were included. The clinical and demographic characteristics of patients, the systemic treatments that they received (CT, IT, targeted therapies), and the stage of disease were determined. Read More

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Current and past infections of hepatitis B virus do not increase mortality in patients with COVID-19.

Hepatology 2021 May 7. Epub 2021 May 7.

Department of Medicine and Therapeutics, Hong Kong SAR, China.

Background & Aims: We compared risk of acute liver injury and mortality in COVID-19 patients with current, past, and no hepatitis B virus (HBV) infection.

Approach & Results: This was a territory-wide retrospective cohort study in Hong Kong. COVID-19 patients between 23 January 2020 and 1 January 2021 were identified. Read More

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Editorial: 'No pain - No gain' - Towards the inclusion of mental health costs in balanced "lockdown" decision-making during health pandemics.

J Child Psychol Psychiatry 2021 May 7. Epub 2021 May 7.

Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.

Since the beginning of the COVID-19 pandemic in early 2020, many governments have implemented national or regional lockdowns to slow the spread of infection. The widely anticipated negative impact these interventions would have on families, including on their mental health, were not included in decision models. The purpose of this editorial is, therefore, to stimulate debate by considering some of the barriers that have stopped governments setting the benefits of lockdown against, in particular, mental health costs during this process and so to make possible a more balanced approach going forward. Read More

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From blanket quarantine in Wuhan to distant centralized quarantine in Shijiazhuang: the evolution of China's COVID-19 quarantine approach.

Infection 2021 May 7. Epub 2021 May 7.

Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.

With COVID-19 spreading globally, the World Health Organization (WHO) declared a pandemic on March 11, 2020. COVID-19 swept many countries and regions worldwide. An effective response to COVID-19 requires newer and more creative tools. Read More

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Reduced macular vessel density in COVID-19 patients with and without associated thrombotic events using optical coherence tomography angiography.

Graefes Arch Clin Exp Ophthalmol 2021 May 7. Epub 2021 May 7.

Ophthalmology Department, Hospital Clínico San Carlos, Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Oftared, Madrid, Spain.

Purpose: Thrombotic events (TE) represent one of the major complications of SARS-CoV-2 infection. The objective is to evaluate vessel density (VD) and perfusion density (PD) by optical coherence tomography angiography (OCTA) in COVID-19 patients, and compare the findings with healthy controls. The secondary objective is to evaluate if there are differences in OCTA parameters between COVID-19 patients with and without associated TE. Read More

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Masks use and facial dermatitis during COVID-19 outbreak: is there a difference between CE and non-CE approved masks? Multi-center, real-life data from a large Italian cohort.

Ital J Dermatol Venerol 2021 Apr;156(2):220-225

Department of Clinical Dermatology, IRCCS Galeazzi Orthopedic Institute, Milan, Italy.

Background: During the recent COVID-19 outbreak, masks became mandatory and shortages frequent, therefore the prevalence of non-CE (European Conformity Mark) approved masks increased in the general population. We aimed to quantify the prevalence of mask-related cutaneous side effects and the differences between CE and non-CE approved masks.

Methods: In this multicenter prospective observational study conducted from March 20, 2020 to May 12, 2020(during and after quarantine), patients attending emergency departments for a dermatological consult were clinically assessed and their masks were inspected to detect CE marks and UNI (Italian National Unification Entity) norms. Read More

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A series of COVID-19 autopsies with clinical and pathologic comparisons to both seasonal and pandemic influenza.

J Pathol Clin Res 2021 May 7. Epub 2021 May 7.

Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA.

Autopsies of patients who have died from COVID-19 have been crucial in delineating patterns of injury associated with SARS-CoV-2 infection. Despite their utility, comprehensive autopsy studies are somewhat lacking relative to the global burden of disease, and very few comprehensive studies contextualize the findings to other fatal viral infections. We developed a novel autopsy protocol in order to perform postmortem examinations on victims of COVID-19 and herein describe detailed clinical information, gross findings, and histologic features observed in the first 16 complete COVID-19 autopsies. Read More

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Exploring the acceptance of COVID-19 vaccine among healthcare workers and general population using health belief model.

J Eval Clin Pract 2021 May 7. Epub 2021 May 7.

The University of Iowa College of Pharmacy, Iowa City, Iowa, USA.

Rationale, Aims And Objectives: Little is known about hesitancy to receive the COVID-19 vaccines. The objectives of this study were (1) to assess the perceptions of healthcare workers (HCWs) and the general population regarding the COVID-19 vaccines, (2) to evaluate factors influencing the acceptance of vaccination using the health belief model (HBM), and (3) to qualitatively explore the suggested intervention strategies to promote the vaccination.

Methods: This was a cross-sectional study based on electronic survey data that was collected in Iraq during December first-19th, 2020. Read More

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Effectiveness of maintenance Electroconvulsive Therapy - Evidence from modifications due to the COVID-19 Pandemic.

Acta Psychiatr Scand 2021 May 7. Epub 2021 May 7.

University Medical Center Göttingen, Department of Psychiatry and Psychotherapy, von-Siebold-Str. 5, D-37075, Göttingen, Germany.

Objective: Continuation and maintenance ECT (c-/m-ECT) are effective in the prevention of relapse and recurrence of both affective and psychotic disorders. However, data are scarce concerning the trajectories of severe mental disorders after the end of c-/m-ECT. This prospective study investigates the clinical outcome of patients with versus without modifications of their c-/m-ECT schedules. Read More

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The silent epidemic of lymphogranuloma venereum inside the COVID-19 pandemic in Madrid, Spain, March 2020 to February 2021.

Euro Surveill 2021 May;26(18)

Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.

Despite social distancing measures implemented in Madrid to prevent the propagation of SARS-CoV-2, a significant increase (57.1%; 28.5 to 38. Read More

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The Impact of Anticoagulation on COVID-19 (SARS CoV-2) Patient Outcomes: A Systematic Review.

J Pharm Pract 2021 May 7:8971900211015055. Epub 2021 May 7.

Florida A&M University College of Pharmacy and Pharmaceutical Sciences, Institute of Public Health, Davie, FL, USA.

Background: Emerging data suggest that coagulopathy, cytokine storm, and acute respiratory distress syndrome are associated with the 2019 coronavirus disease (COVID-19). The prevalence of hypercoagulable state in these patients is unknown, but appears to be higher compared to those with other critically ill patients. Elevated D-dimer, large blood vessels clots, deep vein thrombosis, pulmonary embolism and disseminated intravascular coagulation have been reported in patients diagnosed with COVID-19 either on admission or during hospitalization and may be predictors of poor outcomes. Read More

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Quarantine alone or in combination with other public health measures to control COVID-19: a rapid review.

Cochrane Database Syst Rev 2020 Sep 15;9:CD013574. Epub 2020 Sep 15.

Cochrane Austria, Department for Evidence-based Medicine and Evaluation, Danube University Krems, Krems, Austria.

Background: Coronavirus disease 2019 (COVID-19) is a rapidly emerging disease classified as a pandemic by the World Health Organization (WHO). To support the WHO with their recommendations on quarantine, we conducted a rapid review on the effectiveness of quarantine during severe coronavirus outbreaks.

Objectives: To assess the effects of quarantine (alone or in combination with other measures) of individuals who had contact with confirmed or suspected cases of COVID-19, who travelled from countries with a declared outbreak, or who live in regions with high disease transmission. Read More

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September 2020

Process development and scale-up optimization of the SARS-CoV-2 receptor binding domain-based vaccine candidate, RBD219-N1C1.

Appl Microbiol Biotechnol 2021 May 7. Epub 2021 May 7.

National School of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, One Baylor Plaza, BCM113, Houston, TX, 77030, USA.

A SARS-CoV-2 RBD219-N1C1 (RBD219-N1C1) recombinant protein antigen formulated on Alhydrogel® has recently been shown to elicit a robust neutralizing antibody response against SARS-CoV-2 pseudovirus in mice. The antigen has been produced under current good manufacturing practices (cGMPs) and is now in clinical testing. Here, we report on process development and scale-up optimization for upstream fermentation and downstream purification of the antigen. Read More

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Promoting Compliance to COVID-19 Vaccination in Military Units.

Mil Med 2021 May 7. Epub 2021 May 7.

Israeli Defense Forces Medical Corps, Affiliated with the Hebrew University of Jerusalem, Tel Hashomer 526000, Israel.

Background: On December 27th, 2020, the Israeli Defense Forces initiated a mass COVID-19 vaccination campaign aiming to vaccinate its personnel. This population upheld specific characteristics in terms of age and sex, lack of significant comorbidities, and a general scarcity of risk factors for sustaining a severe COVID-19 illness. We present the measures taken to increase vaccination compliance, and the vaccination rate that followed these actions. Read More

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mRNA technology as one of the promising platforms for the SARS-CoV-2 vaccine development.

Vavilovskii Zhurnal Genet Selektsii 2020 Nov;24(7):802-807

State Research Center of Virology and Biotechnology "Vector", Koltsovo, Novosibirsk region, Russia.

After the genome sequence of SARS-CoV-2 (Severe acute respiratory syndrome-related coronavirus 2) was published and the number of infected people began to increase rapidly, many global companies began to develop a vaccine. Almost all known approaches to vaccine design were applied for this purpose, including inactivated viruses, mRNA and DNA-vaccines, vaccines based on various viral vectors, synthetically generated peptides and recombinant proteins produced in cells of insects and mammals. This review considers one of the promising vaccine platforms based on messenger RNA. Read More

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November 2020

Outcomes of Patients With ST-Segment Elevation Myocardial Infarction Admitted During COVID-19 Pandemic Lockdown in Germany - Results of a Single Center Prospective Cohort Study.

Front Cardiovasc Med 2021 20;8:638954. Epub 2021 Apr 20.

Clinic for Internal Medicine II, University Hospital Ulm - Medical Center, Ulm, Germany.

Since the outbreak of the COVID-19 pandemic, healthcare professionals reported declining numbers of patients admitted with ST-segment myocardial infarction (STEMI) associated with increased in-hospital morbidity and mortality. However, the effect of lockdown on outcomes of STEMI patients admitted during the COVID-19 crisis has not been prospectively evaluated. A prospective, observational study on STEMI patients admitted to our tertiary care center during the COVID-19 pandemic was conducted. Read More

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Barriers Influencing Vaccine Development Timelines, Identification, Causal Analysis, and Prioritization of Key Barriers by KOLs in General and Covid-19 Vaccine R&D.

Front Public Health 2021 20;9:612541. Epub 2021 Apr 20.

Athena Institute, Faculty of Earth and Life Sciences, Vrije Universiteit, Amsterdam, Netherlands.

A frequently mentioned factor holding back the introduction of new vaccines on the market are their prohibitively long development timelines. These hamper their potential societal benefit and impairs the ability to quickly respond to emerging new pathogens. This is especially worrisome since new pathogens are emerging at all-time high rates of over one per year, and many age-old pathogens are still not vaccine preventable. Read More

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Impact of Chronic Kidney Disease on Severity and Mortality in COVID-19 Patients: A Systematic Review and Meta-analysis.

Cureus 2021 Apr 3;13(4):e14279. Epub 2021 Apr 3.

Critical Care, Mayo Clinic, Rochester, USA.

Coronavirus disease 19 (COVID-19) has affected over 180 countries, resulting in global mass death. It has been reported that patients with underlying disease are more likely to contract the disease and become critically ill. The impact of chronic kidney disease (CKD) on the severity of COVID-19 has been underlined in the literature. Read More

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COVID-19 in Russia: Clinical and Immunological Features of the First-Wave Patients.

Acta Naturae 2021 Jan-Mar;13(1):102-115

Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997 Russia.

The coronavirus disease outbreak in 2019 (COVID-19) has now achieved the level of a global pandemic and affected more than 100 million people on all five continents and caused over 2 million deaths. Russia is, needless to say, among the countries affected by SARS-CoV-2, and its health authorities have mobilized significant efforts and resources to fight the disease. The paper presents the result of a functional analysis of 155 patients in the Moscow Region who were examined at the Central Clinical Hospital of the Russian Academy of Sciences during the first wave of the pandemic (February-July, 2020). Read More

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Current COVID-19 treatments: Rapid review of the literature.

J Glob Health 2021 Apr 24;11:10003. Epub 2021 Apr 24.

Centre for Global Health, Usher Institute, The University of Edinburgh, Edinburgh, UK.

Background: As SARS-CoV-2 continues to spread worldwide, it has already resulted in over 110 million cases and 2.5 million deaths. Currently, there are no effective COVID-19 treatments, although numerous studies are under way. Read More

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