HIV i-Base

Selected words and phrases

base – (also called nucleotide) – the building blocks in DNA that form amino acids. There are four bases represented by the letters A (adenine), T (thymine), C (cytosine) and G (guanine). In RNA the T is replaced by U (uricil).

Genetics, HIV structure and life cycle

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

See also q24H.

virology - the study of viruses.

benign – not harmful.

lymph (or lymphatic) system – vessels, nodes, organs and clear fluid, that are part of the immune system.