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.
(A) (B) (C) Basic understanding about COVID‐19 vaccination. (A) Sources of information on COVID‐19 infections and vaccination. (B) Basic knowledge on eligibility for COVID‐19 vaccination. (C) Perception on immunity after COVID‐19 vaccination
