Sichuan: In April, a total of 20 types of Class B infectious diseases were reported, with 27,375 cases and 372 deaths.

The Sichuan Provincial Health Commission released an overview of the legal infectious disease epidemic situation in Sichuan Province in April 2025. In April 2025, there were no reported class A infectious diseases in the province. There were a total of 20 reported class B infectious diseases, with 27,375 cases and 372 deaths. There were no reported cases of non-infectious atypical pneumonia, poliomyelitis, human infection with highly pathogenic avian influenza, Japanese encephalitis, diphtheria, neonatal tetanus, schistosomiasis, human infection with H7N9 avian influenza. The top five reported diseases in terms of number of cases were hepatitis B, syphilis, tuberculosis, hepatitis C, and novel coronavirus infection. The top three reported diseases in terms of number of deaths were AIDS, tuberculosis, and hepatitis C. There were 10 reported class C infectious diseases with 33,739 cases, and no reported deaths. There were no reported cases of filariasis. The top three reported diseases in terms of number of cases were other infectious diarrheal diseases, hand, foot, and mouth disease, and influenza.