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.
Trends in annual age-specific incidence rates of varicella (a) and percent change in age-specific incidence rates after inclusion of a one-dose varicella vaccine in the National Immunization Program compared to that of the year 2003–2005 (b) in South Korea.
