Sociality and infectious disease prevention and control of sexual and gender minorities in China / 上海预防医学

Sexual and gender minorities have social behavioral characteristics such as aggregation， mobility， exclusivity， and concealment， which may be associated with the transmission of infectious diseases in this group. This paper aims to explore the relationship between the sociality of this group and its transmission and prevention and control of infectious diseases， emphasize the importance of paying attention to the transmission of sexually transmitted diseases and respiratory diseases in sexual and gender minorities. This paper puts forward some thoughts for infectious disease prevention and control of this group in the future.

Design of mobile containerized negative pressure chamber / 医疗卫生装备

Objective To design a mobile container-based negative pressure chamber compatible with kinds of carriers to isolate and treat patients with respiratory infectious diseases.Methods A negative pressure chamber with standard container sizes was developed whose enclosure structure involved in 2 mm-thick galvanized steel plate,10 mm-thick high-performance thermal isolation polyurethane foam board,2 mm-thick galvanized steel plate and 10 mm-thick integral inner panel.There were three functional areas included in the chamber for clean office area,semi-polluted passage and polluted ward with toilet.Negative pressure differences between the functional areas were generated by full DC air supply and exhaust system to form directional air flow in the chamber.The patient's exhaled air was purified before emission with the high-efficiency particulate air filtration system.The negative pressure chamber was equipped with a portable life monitoring and support device,a remote consultation and guidance system,a water and electricity support system and etc.Results Air quality tests showed that the negative pressure chamber met the national standards in air cleanliness,static pressure difference,number of dust particles,settled bacteria,microorganisms on the surface of the object and etc.Conclusion The negative pressure chamber compatible with kinds of carriers can be used for the isolation and emergency treatment of patients with respiratory infectious diseases and the long-distance transport of critically ill patients.[Chinese Medical Equipment Journal,2023,44(9):24-28]