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Glossary

Selected words and phrases

fungus (fungi) – parasitic organisms that include moulds, mildews, mushrooms and yeast.

secondary mutation – see minor mutation.

virology – the study of viruses.

open label – this means that a patient in a trial knows which treatment they are taking.

resistance – when the genetic structure of an organism (virus, bacteria, fungi etc) changes in a way that stops a drug from working. See mutation.

Changing treatment and drug resistance.