Changing Epidemiology of Hepatitis A in China: Evidence From Three National Serological Surveys and the National Notifiable Disease Reporting System

Background and Aims China has conducted surveillance for hepatitis A since 1990, and hepatitis A was highly‐to‐intermediately endemic in 1992 when a Chinese hepatitis A vaccine (HepA) was licensed and introduced as a family‐pay vaccine. In 2008, HepA was introduced into the Expanded Program on Immunization as a free childhood vaccine. Approach and Results Three nationally representative surveys conducted in 1992, 2006, and 2014 assessed...