Between June and November 2020, we assessed plasma antibodies against severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleocapsid protein in 4996 …

Understanding antibody responses after natural severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) infection can guide the coronavirus disease 2019 (COVID-19) …

We studied SARS-CoV-2 binding and neutralizing antibody titers among previously infected
persons in the United States over time. We assayed SARS-CoV-2 spike protein receptor …

Background Following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
infection or vaccination there is significant variability between individuals in protective …

SARS-CoV-2 is responsible for the coronavirus disease 2019 (COVID-19) pandemic,
infecting millions of people and causing hundreds of thousands of deaths. The Spike …

Inactivated SARS-CoV-2 vaccines have been deployed in a significant portion of the world
population, who have widely varied responses to vaccination. Understanding this differential …

The humoral immune response plays a key role in protecting the population from SARS-CoV-
2 transmission. Patients who recovered from COVID-19 as well as fully vaccinated …

SARS-CoV-2 is the newly emerged virus responsible for the global COVID-19 pandemic.
There is an incomplete understanding of the host humoral immune response to SARS-CoV …

BACKGROUND Serological assays are of critical importance to investigate correlates of
response and protection in coronavirus disease 2019 (COVID-19), to define previous …

COVID-19 continues to cause a pandemic, having infected more than 20 million people
globally. Successful elimination of the SARS-CoV-2 virus will require an effective vaccine …