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Glossary

Selected words and phrases

mortality – medical word for death or dying.

performance stage – WHO classification of progress of HIV infection.

WHO classification system.

mutation – a change in the genetic structure of an organism (including a virus like HIV). See resistance.

Changing treatment and drug resistance.

empirical treatment – treating an illness based on its symptoms to see if it gets better.

haemoglobin – substance in red blood cells that carries oxygen.