When HIV progresses to the end stage, the mortality rate of HIV-infected individuals increases significantly. Without treatment, those who have progressed to the end stage typically live for about 3 years. If the patient contracts a dangerous opportunistic infection, the survival time is only 1 year.

The incubation period of HIV in adults typically ranges from 1-6 months, varying based on individual physiology and immunity. People with weaker immune systems have shorter incubation periods. In the early stage, HIV-infected individuals experience flu-like symptoms: fever, sore throat, cough,...