Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Plasma samples were collected A) Pre-booster vaccination B) Pre-challenge infection and C) seven days post infection. No statistical significances in the antibody levels were found among all groups at any of the sampling time points.
