10 facts on HIV/AIDS

Updated May 2017

HIV/AIDS remains one of the world's most significant public health challenges, particularly in low- and middle-income countries.

As a result of recent advances in access to antiretroviral therapy (ART), HIV-positive people now live longer and healthier lives. In addition, it has been confirmed that ART prevents onward transmission of HIV.

An estimated 18.2 million [16.1 million–19 million] people were receiving HIV treatment in mid-2016. However, globally, only 46% [43–50%] of the 36.7 million people living with HIV in 2015 were receiving ART.

Progress has also been made in preventing and eliminating mother-to-child transmission and keeping mothers alive. In 2015, almost 8 out of 10 pregnant women living with HIV, or 1.1 million women, received antiretrovirals (ARVs).

WHO has released a set of normative guidelines and provides support to countries in formulating and implementing policies and programmes to improve and scale up HIV prevention, treatment, care and support services for all people in need.

This fact file provides current data on the disease, and ways to prevent and treat it.


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