Glossary

genotype test – a test that looks at how the genetic structure of a sample of HIV and whether the virus has changed with drug resistant mutations.

standard deviation (SD) – the standard deviation from a mean average, is a measure of the degree of variation from the mean.

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).

monotherapy – using only one drug.

thrombocytopenia – a low platelet count (platelets help stop bleeding by clotting blood).