Answer: 21,9%
Explanation: According to official data, Botswana is one of the countries where HIV is most prevalent in the world. As many as 21.9% of the population are infected with the virus, and in the population between the ages of 15 and 49, as many as 20,3%, are infected with HIV, though this percentage also varies. This is why Botswana is the first in Africa to launch a treatment program, or rather, drug treatment for HIV. In total HIV prevalence, Botswana is the third in the world.