Fig 2 Cumulative number of pregnant women in cohort as well as cumulative number of pregnant women vaccinated against pandemic A/H1N1 2009 influenza throughout study period
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.