Human immunodeficiency virus, or HIV, is a virus that attacks the body’s infection-fighting immune system. Today’s treatments help lower the amount of virus in the blood so people who are HIV-positive can live healthier lives.

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How to Prevent HIV

HIV is difficult to treat, but easier to prevent. Here's how to protect yourself.

16 Signs You May Have HIV

Think you have HIV? The only way to tell is to get an HIV test, but here are some possible symptoms.

Top 10 Myths About Safe Sex and Sexual Health

You can't trust everything you read on the Internet, so we got the facts behind these top sexual health misconceptions.

10 Things You Never Knew About HIV and AIDS

World AIDS Day is an opportunity to take stock of the epidemic’s scope and the everyday impact of the virus.

Child With HIV Has Been in Remission For Nearly 9 Years Without Drugs

Scientists report on an encouraging case of a child with sustained remission of HIV with early treatment, but without continuing drugs.

7 Myths About HIV and the Facts You Need to Know

When the National Enquirer broke the news of Charlie Sheen’s HIV diagnosis, the story was already misleading: “Charlie Sheen AIDS Cover-Up,” blared the headline.

More on HIV


HIV is commonly transmitted through sexual contact or use of shared needles.