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: Vaccine effectiveness by country income level and strain type for RV1. The 95% confidence intervals may differ slightly from original publications due to small differences in back-calculation of odds ratios from abstracted vaccine effectiveness estimates or truncation of lower limits at 0 (REF Ali 2016). B: Vaccine effectiveness by country income level and strain type for RV5. NS indicates not specified, i.e., raw numbers not specified in the paper.
