Background The diagnostic challenges associated with the COVID‐19 pandemic resulted in
rapid development of diagnostic test methods for detecting SARS‐CoV‐2 infection. Serology …

Objective To estimate the infection fatality rate of coronavirus disease 2019 (COVID-19) from
seroprevalence data. Methods I searched PubMed and preprint servers for COVID-19 …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread rapidly in Manaus,
the capital of Amazonas state in northern Brazil. The attack rate there is an estimate of the …

Background Spain is one of the European countries most affected by the COVID-19
pandemic. Serological surveys are a valuable tool to assess the extent of the epidemic …

We conducted a serological study to define correlates of immunity against SARS-CoV-2.
Compared to those with mild coronavirus disease 2019 (COVID-19) cases, individuals with …

Objectives To describe the characteristics of children and adolescents affected by an
outbreak of Kawasaki-like multisystem inflammatory syndrome and to evaluate a potential …

The development of vaccines against SARS-CoV-2 would be greatly facilitated by the
identification of immunological correlates of protection in humans. However, to date, studies …

Immune protection following either vaccination or infection with SARS-CoV-2 is thought to
decrease over time. We designed a retrospective study, conducted at Leumit Health …

An important unknown during the coronavirus disease-2019 (COVID-19) pandemic has
been the infection fatality rate (IFR). This differs from the case fatality rate (CFR) as an …

Importance Reported cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) infection likely underestimate the prevalence of infection in affected communities. Large …