[Impact of emergencies on immunization program, risk assessment and response recommendations].

Since the founding of the People's Republic of China in 1949, China's vaccination work has been making remarkable achievements. However, under the state of emergency, such as major infectious disease outbreaks, major natural disasters, vaccine-related events, large-scale population entry at the border, vaccination services confront many challenges, and the emergency plan for vaccination services in most areas is still in the exploratory stage. Based on the experience at home and abroad, combined with China's relevant policies, technical guidelines and evidence, this study provides suggestions for vaccination services in aforementioned emergency events, in order to standardize the development and implementation of vaccination services under the state of emergency in China.