What it is: HIV (human immunodeficiency virus) is a viral infection that lives in the blood and breaks down the immune system of the body. HIV eventually results in AIDS (acquired immunodeficiency syndrome) and is fatal.

How you get it: HIV can be transmitted by bodily fluids, blood, semen, vaginal fluid and breast milk. Unprotected vaginal, anal or oral sex with someone who already has the virus.

Symptoms: Many people are unaware they have HIV since there are no tell-tale symptoms. In fact, some people can go years without realizing they're carrying the virus. Usually a blood test (also called the HIV antibody test) determines whether or not a person is HIV-positive.

Prevention: Make sure you and your partner are both screened. Currently, the only effective way to prevent HIV is through latex condoms. However, there is always a risk involved, as the condom may break or tear. Abstinence is the only way to stay 100% safe.

Treatment: There is no cure for HIV/AIDS, though the virus is treatable through various types of medications, such as immune boosting drugs or anti-retroviral drugs. With proper treatment, a person infected with HIV can slow (or even) stop the progression of AIDS.

Long-term Implications: There is no cure for HIV/AIDS. Untreated, this virus will result in death. However, with proper medication, a person infected with the virus can live a long and healthy life.