1. Sexual Contact:
AIDS can be transmitted through unprotected sexual contact with an infected person. This includes vaginal, anal, and oral sex. The virus can enter the body through tiny cuts or sores in the mucous membranes of the genitals or mouth.

2. Sharing Needles:
Sharing needles or syringes with an infected person can also transmit the virus. This is common among intravenous drug users who inject drugs like heroin or cocaine.

3. From Mother to Child:
HIV can be passed from mother to child during pregnancy, childbirth, or breastfeeding. This is known as mother-to-child transmission.

4. Blood Transfusions:
Although rare nowadays due to strict screening of blood donations, HIV can be transmitted through infected blood transfusions or organ transplants.

5. Occupational Exposure:
Healthcare workers can be at risk of HIV transmission if they are accidentally stuck with a needle that has been used on an infected person.

6. Unprotected Oral Sex:
While the risk is lower compared to vaginal or anal sex, unprotected oral sex can still transmit HIV, especially if there are cuts or sores in the mouth.

7. Sharing Personal Items:
Although less common, sharing personal items such as razors or toothbrushes with an infected person can potentially transmit the virus if there is blood present.