Figure 1.
A schematic graphic showing the timeline of vaccinations and blood sampling in the study. Syringes indicate the time of vaccination and blood vials indicate the time of blood sampling.
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.