Lesotho has the third highest adult HIV prevalence in the world at 23.6 per cent (end of 2009). There were 290,000 people living with HIV at the end of 2009.
There were 61,763 people on antiretroviral treatment (ART) at the end of 2009, which corresponds to a coverage of 48 per cent of all people in need.
Lesotho has made significant advances in the prevention of mother-to-child transmission of HIV (PMTCT). PMTCT coverage has increased from six per cent in 2005 to 58.2 per cent in 2008 and 71 per cent in 2009. As of December 2009, the percentage of pregnant women on ART to prevent vertical transmission was 64 per cent.