Background This study aimed at monitoring the kinetics of serum total anti-SARS-CoV-2
(severe acute respiratory syndrome coronavirus 2) antibodies in a cohort of healthcare …

Objectives We provide here an updated analysis of an ongoing serosurveillance study,
presenting data on the effect of a third dose of Pfizer/BioNTech BNT162b2 vaccine on serum …

Background Since universal vaccinations represents the most effective strategy to mitigate
coronavirus disease 2019 (COVID-19), baseline assessment and post-vaccine monitoring of …

Data about the duration of antibodies after vaccination show that the protection against
SARS-CoV-2 infection begins to decline over time. This study aims to determine anti-SARS …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies are an excellent
indicator of past COVID-19 infection. As the COVID-19 pandemic progresses, retained …

Protection provided by COVID-19 vaccines is compromised due to waning immunity over
time. This study aimed to assess the level of antibodies anti-S-RBD of SARS-CoV-2 in a …

We quantitatively analyzed SARS-CoV-2 antibody levels in patients after two doses of the
ChAdOx1 nCoV-19 vaccine and the third BNT162b2 booster. We obtained 255 serum …

Coronavirus disease 2019 (COVID-19) vaccination began for healthcare workers in South
Korea at the end of February 2021. This study investigated severe acute respiratory …

Research on post-vaccination antibody dynamics has become pivotal in estimating COVID-
19 vaccine efficacy. We studied anti-SARS-CoV-2 Spike RBD IgG levels in 587 healthcare …

Background The kinetics of the antibodies against severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) needs to be evaluated since long-term duration of antibody …