Assessment of the cumulative incidence of SARS-CoV-2 infections is critical for monitoring
the course and extent of the COVID-19 epidemic. Here, we report estimated seroprevalence …

Summary Background Healthcare workers (HCWs) represent a high-risk population for
infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Aim To …

Background Wuhan was the epicentre of the COVID-19 outbreak in China. We aimed to
determine the seroprevalence and kinetics of anti-SARS-CoV-2 antibodies at population …

Objectives Serological studies have been critical in tracking the evolution of the COVID-19
pandemic. Data on anti-SARS-CoV-2 antibodies persistence remain sparse, especially from …

Serological surveys have been conducted to establish prevalence for COVID-19 antibodies
in various cohorts and communities, reporting a wide range of outcomes. The prevalence of …

Given the limited availability of serological testing to date, the seroprevalence of SARS-CoV-
2-specific antibodies in different populations has remained unclear. Here, we report very low …

We aimed to assess the prevalence of and factors associated with anti-severe acute
respiratory syndrome coronavirus-2 (SARS-CoV-2) positivity in a large population of adult …

Background Measuring the seroprevalence of antibodies to Severe Acute Respiratory
Syndrome Coronavirus 2 (SARS-CoV-2) is central to understanding infection risk and fatality …

Background Rapid increases in cases of COVID-19 were observed in multiple cities in Iran
towards the start of the pandemic. However, the true infection rate remains unknown. We …

Background We aim to investigate the profile of acute antibody response in COVID-19
patients, and provide proposals for the usage of antibody test in clinical practice. Methods A …