Skip Nav

Education Materials

AIDSinfo Glossary Search

A - Z Index

glossary a-z index

HypersensitivityAudio (En español)

Also known as: Hypersensitivity Reaction

An exaggerated immune response to a specific antigen or drug. Hypersensitivity reactions, including allergic reactions, can be life-threatening. Use of some antiretroviral (ARV) drugs may cause a hypersensitivity reaction.