Suzhou.

The top five districts and cities with the most AIDS cases in Jiangsu are Suzhou, Nanjing, Nantong, Wuxi and Changzhou. The cumulative number of reports from the above five cities accounts for 61.66 of the total number of reports in the province.

AIDS is a chronic infectious disease caused by human immunodeficiency virus, and is the abbreviation of acquired immunodeficiency syndrome. Mainly through sexual transmission, blood transmission and mother-to-child transmission. It has the characteristics of rapid spread, slow onset and high case fatality rate. Patients and HIV carriers are both sources of infection, and the population is generally susceptible. HIV acts on human immune cells, destroys the body's immune system, and can lead to serious infections and tumors. The incubation period can be as short as a few months or as long as several years. Symptoms such as fever, general malaise, headache, nausea, and muscle aches may occur in the early stages of infection. The symptoms disappear after about two weeks and enter the asymptomatic period. This may be accompanied by repeated enlargement of lymph nodes throughout the body. During the onset period, systemic symptoms may appear, including fever, night sweats, and anorexia, and gradually invade various systems, such as the nervous system, respiratory system, digestive system, skin and mucous membranes, eyes, etc., and may cause secondary tumors, serious bacterial infections, and fungal infections.