The HIV/AIDS Treatment Information Service (ATIS) presents the fourth edition of the Glossary of HIV/AIDS-Related Terms. The glossary has been updated to include new terms, updates to existing terms, and a matrix of federal resources that can be contacted for additional information.

ATIS is a Department of Health and Human Services project collaboratively sponsored by the National Institutes of Health, Centers for Medicare and Medicaid Services, Health Resources and Services Administration, and the Centers for Disease Control and Prevention. These agencies were instrumental in reviewing all of the terms presented in this edition.

ATIS is your central resource for all federally approved HIV/AIDS treatment guidelines. With frequent updates to these guidelines being released through ATIS, it is essential for care providers and persons living with HIV/AIDS to know how to access the service:

Trained bilingual information specialists can provide free, confidential, and personalized answers to your questions on HIV treatment options.