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.
According to immunization cards by month of age in the four cohorts of children aged 8-12 months(blue line), 13-24 months(green line), 25-36 months(yellowe line) and 37-48 months(purple line). Number of children in each cohort is 108, 208, 201 and 182, respectively.
