Glossary

drug resistant (HIV) – HIV that is harder to treat because of genetic changes.

cross-over study – where patients in a study ‘roll-over’ to a second related study. For example, this can be after a fixed period in a study (ie after 48 weeks) or after another event (for example, not having a treatment response).

PEP (Post-Exposure Prophylaxis) – a short course of HIV treatment to HIV to reduce the chance of infection. See prophylaxis and PrEP.

mitochondria – energy producing factories that live inside other cells.

in vitro – a study in a test tube. Literally, ‘in glass’.