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.
Age-stratified anti–hepatitis A virus IgG seroprevalence data from Xiengkhouang, Lao People’s Democratic Republic, in 2017 compared with Thailand from 1971/1972 to 2014. Dotted line corresponds to the age of 50% seropositivity. Adapted from Sa-nguanmoo et al.8 This figure appears in color at www.ajtmh.org.
