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Prevalence of HIV as a share of population aged 15-49


Swaziland is the top country by HIV prevalence in the world. As of 2017, HIV prevalence in Swaziland was 27.4 %. The top 5 countries also includes Lesotho, Botswana, South Africa, and Zimbabwe.

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What is HIV prevalence?

Prevalence of HIV refers to the percentage of people ages 15-49 who are infected with HIV.