AIDS/HIV: HIV attacks the immune system. It can lead to AIDS as time passes and gets worse. The transmission can be from sexual contact, shared needles, and infected blood. The symptoms of AIDS is fever, headache, sore throat, night sweats,, mouth sores, swollen lymph nodes, and diarrhea. The treatment is antiretrovial therapy(ART). The prevention is to Abstain and use latex condoms correctly.