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HIV & AIDS Education

Basic Facts About HIV and AIDS

What is HIV?

HIV (Human Immunodeficiency Virus) is the virus that causes AIDS. HIV is different from most other viruses because it attacks the immune system. The immune system gives our bodies the ability to fight infections. HIV finds and destroys a type of white blood cell (T cells or CD4 cells) that the immune system must have to fight disease. (CDC DHAP Fact Sheet: Basic Information, 2008.)

What Is AIDS?

AIDS (Acquired ImmunoDeficiency Syndrome) is a fatal disease caused by infection with HIV (human immunodeficiency virus) is the final stage of HIV infection. It can take years for a person infected with HIV, even without treatment, to reach this stage. Having AIDS means that the virus has weakened the immune system to the point at which the body has a difficult time fighting infections. When someone has one or more of these infections and a low number of T cells, he or she has AIDS (CDC DHAP Fact Sheet: Basic Information, 2008.). By preventing HIV infection, you can prevent AIDS. (See HIV/AIDS: Are You at Risk?) Currently, there is currently no cure for AIDS and no vaccine to prevent HIV infection, but more people than ever before are living with HIV/AIDS. CDC estimates that about 1 million people in the United States are living with HIV or AIDS. About one quarter of these people do not know that they are infected: not knowing puts them and others at risk. (CDC DHAP Fact Sheet: Basic Information, 2008.)

How Can People Get HIV?

HIV is transmitted in 3 main ways:

Because the blood supply in the United States is screened for HIV, the chance of getting HIV from transfusions is extremely small. Therefore, the risk for HIV infection through the transfusion of blood or blood products is extremely low. (CDC DHAP Fact Sheet: Basic Information, 2008).

How Can People Protect Themselves From HIV Infection?

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