7.2. Analysis.
Comparison 7: Whole cell vaccines (all types) versus placebo ‐ Safety outcomes (second dose), Outcome 2: Adverse events ‐ Bivalent whole cell (BivWC) versus placebo
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.