Human Immune Deficiency Virus (HIV)
The Human Immune Deficiency Virus is an infection that kills the body's CD4 cells, which help the immune system fight infections and cancers. It is usually spread through bodily fluid contact. Some of these bodily fluids include blood, semen, pre-seminal fluid, vaginal fluids, rectal fluids, and breast milk.
Symptoms during the first 2-4 weeks after infection are fever, chills, and rashes. Without treatment, the HIV infection will slowly destroy the immune system and advance to AIDs.