Glossary

QD (or qd) – a short hand term for medication dosing that means ‘once-daily’.

See also q24H.

fetal – of the unborn baby.

neonate – a baby that is 0 to 28 days old.

phenotype test – a type of drug resistance that tests whether a drug is sensitive or resistance to a sample of HIV.

natural history – the pattern a disease follows if it is not treated. The natural history of HIV includes very high viral load in the first weeks or months of infection (seroconversion), a drop in CD4 counts that then recovers, and then a slower progressive increase in viral load and decrease in CD4 count, that eventually lead to opportunistic infections.

Natural history graph and more details.