5. Zimbabwe
Adult prevalence rate: 16.74%
The estimated number of people who are HIV/AIDS affected in this country number 5 on our list of countries that have the most AIDS cases in the world is 1.4 million, while the number of AIDS-related deaths is 29,000. The number of infected women in Zimbabwe is estimated to be 790,000, while the percentage of young people aged 15-24 is 4.1. However, the number of new infections decreased from 79,000 in 2010 to 64,000 in 2015, which is a result in some of the changes in governmental approach to this issue.