… Of note, mild infections resulted in short-lived and very low antibody titers near the detection
limit. This loss of humoral immunity has been linked to the occurrence of (re-)infections with …

… acute respiratory syndrome coronavirus 2 (SARS-CoV-2) … antibodies directed to the
SARS-CoV-2 Spike (S) antigen, either total (Wantaï SARS-CoV-2 Ab ELISA) or IgG (SARS-CoV-2 …

… coronavirus responsible for the 2003 severe acute respiratory syndrome (SARS) outbreak,
was renamed SARS coronavirus 2 (“SARS… Finally, the present study has some limitations. First…

… This limits the interpretation of the anti-SARS-CoV-2-spike IgG levels of HCWs with immune
deficiency and its consequences on the immune response after COVID-19 vaccination. …

… Several antibody tests have emerged to diagnose SARS-CoV-2. Here we report on a …
Limit of detection To determine the limit of detection of the assay, 90 known SARS-CoV-2-RNA-…

… We conclude that low seroprevalences require an unusually high specificity for SARS-CoV-2
antibody tests, which pushes some test systems to their limits earlier than others. Therefore, …

… anti-trimeric spike IgG antibody responses after SARS-CoV-2 … , the presence or absence of
prior SARS-CoV-2 infection and … assay upper limit of 500 ng ml –1 . For the logistic model for …

… Despite these limitations, a major strength of our … antibody treatment for SARS-CoV-2.
A major factor that will affect future use of antibody therapies is the recognition of SARSCoV-2 …

… Here we profile the antibody responses of 162 COVID-19 symptomatic patients in the
COVID… to find SARS-CoV-2 neutralization, as well as antibodies either recognizing SARS-CoV-2 …

… the antibody-treated groups (limit of detection = 50 (1.7 log 10 ) RNA copies per swab or per
ml), indicating that these antibodies conferred protection against SARS-CoV… antibodies were …