Summary What is already known on this topic?Men who have sex with men(MSM)in China have a high rate of human immunodeficiency virus(HIV)infection.Pre-exposure prophylaxis(PrEP)and postexposure prophylaxis(PEP)have bee...
The occurrence of acute infectious diseases or severe natural disasters has a negative impact on the medical system(1).A survey of 105 countries by the World Health Organization(WHO)from March to June 2020 found that ...