HIV/AIDS Glossary

Quasispecies

A group of viruses found in the same host. The viruses in the group develop similar genetic mutations over time. During HIV infection, HIV can mutate into multiple quasispecies, which may reduce the immune system’s ability to control HIV infection. Antiretroviral therapy (ART) started in the early stages of HIV infection can control HIV replication and development of quasispecies.

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