Learn simple facts about how HIV spreads, what increases or lowers risk, and ways to protect yourself and others from HIV.

Review travel tips for people with HIV, including medicine planning, legal rules, and staying healthy whether traveling inside or outside of the United States.

Learn about the benefits and risks of dietary supplements for people with HIV, including drug interactions and evidence-based insights on supplements and HIV.

Natural disasters can disrupt HIV treatment. Learn how people with HIV can prepare for disasters and maintain HIV treatment during displacement.

Learn about the best time to start HIV medicines, plus additional tips to choose the best HIV treatment regimen for your needs.

Get information about opportunistic infections, which are more common or severe in people with HIV and other people with weak immune systems.

Investigational HIV drugs are being studied in clinical trials to see if they are safe and effective.

When available, a therapeutic HIV vaccine will be given to people with HIV to improve the body’s immune response to the virus.

When available, a preventive HIV vaccine will be given to people to prevent HIV infection if they are exposed to the virus.

A latent HIV reservoir is a group of immune cells in the body infected with HIV that are not actively producing new HIV. Read more Clinicalinfo HIV fact sheets.

Learn about drug interactions caused by HIV medicines and other substances, including symptoms and what to do if you experience drug interactions.

Learn about the 3 stages of HIV infection, including how HIV medicines affect these stages.

Learn about the seven stages of the HIV life cycle and how HIV medicines affect different stages of this cycle.

Get information on how to prevent the transmission of HIV. These steps can help protect yourself and others from HIV.

Learn about HIV medicines, including guidance on choosing the best HIV medicine for your individual needs.

Get information on how HIV medicines can prevent the transmission of HIV during pregnancy and childbirth.

Get information on how to prevent the transmission of HIV to an infant after pregnancy, including while breastfeeding.

Learn about HIV pre-exposure prophylaxis (PrEP), including information on when to take PrEP to reduce the risk of HIV transmission.

Learn about HIV post-exposure prophylaxis (PEP), including the critical 72-hour window available to prevent HIV infection.

View guidance to help choose and adhere to an HIV treatment regimen, with tips for before and after starting treatment.