HIV/AIDS / Causes of Infection

Epidemiological studies have shown that there are only three modes of transmission of HIV infection:-

  1. Through sexual intercourse: This includes-Heterosexual, Homosexual and Bisexual.
  2. Through Blood and Blood products : This includes-
    • Transfusion of unscreened/ contaminated blood.
    • Using contaminated needles and syringes.
    • Through contaminated instruments like razors (beware of using once used razors in barber shops) used in shaving or the needle used in ear piercing, tattooing etc.
  3. Vertical transmission: From infected mother to her foetus or infant before/ during/ or after delivery.