A lot of STDs are treatable or quickly curable when detected early. HIV (human immunodeficiency infection) is an infection that assaults the body's body immune system, ruining the CD4 cells (additionally called T cells). It is primarily spread out by having anal or genital sex or sharing injection medicine devices with somebody who has HIV. Gradually, HIV weakens the body's ability to fight off infections and illness. Herpes is an usual viral infection that is brought on by the herpes simplex virus (HSV).