The study is based on a random sample that included people with asymptomatic infections. Vaccines protect well against severe disease.

The study did not involve cases from the latest omicron surge. Both vaccination and a prior infection provided protection against another infection and hospitalization due to COVID-19 during the ...

Share on Pinterest Someone waits in line for a vaccination outside a mass vaccination center on August 23, 2021. Lisa Maree Williams/Getty Images The COVID-19 Infection Survey regularly tests a random ...

A new investigation published in JAMA examines how COVID-19 vaccination affects maternal and perinatal outcomes among ...

Prior COVID-19 vaccination did not stop the immune system from mounting a protective response to the delta and omicron strains, though new mutation-specific antibody production dipped slightly, ...

He said Delta appears to be “following the same pattern” as Alpha, the more infectious variant first found in the U.K. After taking over as that country’s most widespread variant, Alpha moved across ...

NEW YORK -- As Americans brace for the possibility of another difficult winter ahead in the nation's fight against coronavirus, there is a renewed sense of urgency to get as many people inoculated and ...