Impact of the “Class B infectious disease Class B management” policy on the number of cases and deaths of notifiable infectious diseases in China during the COVID-19 epidemic: a nationwide interrupted time series study

If China or other regions relax their prevention and control measures against coronavirus infectious diseases similar to SARS in the future, health authorities should, on the one hand, remain vigilant immediately to prevent a sudden increase in the number of cases of airborne and insect-borne infectious diseases, and on the other hand, maintain long term close monitoring of the trend of cases of blood-borne and sexual infectious diseases. This is crucial for the sustainable control of notifiable infectious diseases and the maintenance of social stability. Furthermore, when evaluating the effectiveness of policies (interventions) in the future, it is recommended to adopt an interrupted time series design.