The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2), is associated with a robust immune response. The …

Laboratory testing has been a key tool in managing the SARS-CoV-2 global pandemic.
While rapid antigen and PCR testing has proven useful for diagnosing acute SARS-CoV-2 …

Antinucleocapsid (anti-N) immunoglobulin G antibody responses were lower in plasma and
oral fluid after severe acute respiratory syndrome coronavirus 2 infection in vaccinated …

Serological assays measuring antibodies against SARS-CoV-2 are key to describe the
epidemiology, pathobiology or induction of immunity after infection or vaccination. Of those …

The aim of this study was to analyze the profiles of IgG subclasses in COVID-19
convalescent Puerto Rican subjects and compare these profiles with those of non-infected …

Background Serological surveys have been the gold standard to estimate numbers of SARS-
CoV-2 infections, the dynamics of the epidemic, and disease severity. Serological assays …

COVID-19 has highlighted challenges in the measurement quality and comparability of
serological binding and neutralization assays. Due to many different assay formats and …

Industrial livestock operations (ILOs), particularly processing facilities, emerged as centers of
coronavirus disease 2019 (COVID-19) outbreaks in spring 2020. Confirmed cases of COVID …

Background Critically ill hospitalized patients with COVID-19 have greater antibody titers
than those with mild to moderate illness, but their association with recovery or death from …

Background Long COVID is highly heterogeneous, often debilitating, and may last for years
after infection. The aetiology of long COVID remains uncertain. Examination of potential …