Extended data:
The full name of epidemiological investigation refers to the investigation and research conducted by epidemiological methods. It is mainly used to study the distribution and determinants of diseases, health and hygiene events. Through these studies, reasonable preventive health care countermeasures and health service measures are put forward, and the effects of these countermeasures and measures are evaluated.
Epidemiological investigation is an important work carried out according to the Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases and the Emergency Regulations of Public Health Emergencies.