East and Southern Africa is the region hardest hit by HIV. It is home to around 6.2% of the world’s population but over half (54%) of the total number of people living with HIV in the world (20.6 million people).
It is estimated that 370,000 people live with HIV in Botswana, however universal free antiretroviral treatment means that 85% of adults are receiving treatment.
Eswatini has the highest prevalence of HIV in the world. In 2019, 27% of adults in Eswatini were living with HIV, 95% of these adults were accessing antiretrovial treatment.
In 2019, 1.7 million people were living with HIV in Tanzania and 77,000 were newly infected. Of the adults living with HIV, 75% were receiving antiretroviral treatment.
Although HIV prevalence in West and Central Africa is relatively low compared to East and Southern Africa, the region is home to 4.9 million people living with HIV.
Nigeria was home to 1.8 million people living with HIV in 2019. It's large population, however, means that this equates to a relatively low prevalence of 1.3% in adults - much lower than many countries in East and Southern Africa.