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  1. The HIV virus in present in large quantities in semen, blood and sexual secretions of infected patients.
  2. AIDS is a sexually transmitted disease. Unprotected sexual intercourse with infected partner if there is tissue injury to permit blood contact.
  3. Sharing infected needles and syringes to inject drugs or vaccines.
  4. Blood to blood contact as in transfusion of blood or blood products.
  5. Organ transplantation.
  6. Mother to foetus transmission. Infected mother can transmit the virus to the child during pregnancy or during child birth.
  7. Use of contaminated razors for shaving.
  8. The sexual route of transmission accounts for over 70% of infections.
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