CD4 count drops below 200. The immune system fails. Opportunistic infections develop. Tuberculosis, certain cancers, and fungal infections appear. Even at this stage, antiretroviral therapy works, rebuilding immunity and preventing death.
Rapid tests use blood or saliva, giving results in 20 to 40 minutes. They detect antibodies or antigens. Positive results require confirmatory testing at a clinic or lab by trained staff.. Government clinics, private labs, and non-profit organizations offer free or low-cost HIV tests. Call your country's AIDS helpline or visit clinics without stigma. Results remain confidential. If positive, counselors connect you immediately to treatment centers and support groups nationwide.