Glossary

organogenesis – the process of development of baby’s main organs. This period is the first 12 weeks in the womb.

TasP (Treatment as Prevention) – a term to emphasise the impact that HIV drugs (ART) has on dramatically reducing the chance of HIV transmission.

ART is firstly for the health of the HIV positive person. But having an undetectable viral load on ART makes it so difficult to transmit HIV that the risk gets so close to zero that it is effectively zero.

For example, in the PARTNER study, nearly 900 couples had sex more than 58,000 times without condoms, without any transmissions. Each couple included one person who was HIV positive with an undetectable viral load on ART and one person who was HIV negative. ZERO transmissions.

fetal – of the unborn baby.

EVR (early virological response) – a 99% (2-log ) drop in HCV viral load after 12 weeks of HCV treatment.

salvage therapy – a term for the combination therapy used after someone has developed resistance to three or more classes of HIV drugs. Also called ‘third-line’ or ‘rescue therapy’ or ‘treatment of patients with multidrug resistance’.