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.
Model projections for England and Wales. Estimated annual number of vaccine serotype group and non-vaccine serotype group IPD cases before (Year 0) and after the introduction of PCV7 (Year 1) using three different vaccination strategies in England and Wales.
