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HIV, the virus that causes AIDS, is one of the world’s most serious public health challenges. But there is a global commitment to stopping new HIV infections and ensuring that everyone with HIV has access to HIV treatment.

According to UNAIDSExit Disclaimer:

Number of People with HIV—There were approximately 38.4 million people across the globe with HIV in 2021. Of these, 36.7 million were adults and 1.7 million were children (<15 years old). In addition, 54% were women and girls.

New HIV Infections—An estimated 1.5 million individuals worldwide acquired HIV in 2021, marking a 32% decline in new HIV infections since 2010. New HIV infections, or “HIV incidence,” refers to the estimated number of people who newly acquired HIV during a given period such as a year, which is different from the number of people diagnosed with HIV during a year. (Some people may have HIV but not know it.) Of these

1.5 million new HIV infections:
1.3 million were among adults
160,000 were among children (<15 years old)

HIV Testing—Approximately 85% of people with HIV globally knew their HIV status in 2021. The remaining 15% (about 5.9 million people) did not know they had HIV and still needed access to HIV testing services. HIV testing is an essential gateway to HIV prevention, treatment, care, and support services.

HIV Treatment Access—As of the end of 2021, 28.7 million people with HIV (75%) were accessing antiretroviral therapy (ART) globally. That means 9.7 million people are still waiting. HIV treatment access is key to the global effort to end AIDS as a public health threat. People with HIV who are aware of their status, take ART as prescribed, and get and keep an undetectable viral load can live long and healthy lives and will not transmit HIV to their HIV-negative partners through sex.

HIV Care Continuum—The term HIV care continuum refers to the sequence of steps a person with HIV takes from diagnosis through receiving treatment until his or her viral load is suppressed to undetectable levels. Each step in the continuum is marked by an assessment of the number of people who have reached that stage. The stages are: being diagnosed with HIV; being linked to medical care; starting ART; adhering to the treatment regimen; and, finally, having HIV suppressed to undetectable levels in the blood. UNAIDS reports that in 2021, of all people with HIV worldwide:

85% knew their HIV status
75% were accessing ART
68% were virally suppressed

Perinatal Transmission—In 2021, 81% of pregnant people with HIV had access to ART to prevent transmitting HIV to their babies during pregnancy and childbirth and to protect their own health.

AIDS-related Deaths—AIDS-related deaths have been reduced by 68% since the peak in 2004. In 2021, around 650,000 people died from AIDS-related illnesses worldwide, compared to 2 million people in 2004 and 1.4 million in 2010.

Regional Impact—The vast majority of people with HIV are in low- and middle-income countries. In 2021, there were 20.6 million people with HIV (53%) in eastern and southern Africa, 5 million (13%) in western and central Africa, 6 million (15%) in Asia and the Pacific, and 2.3 million (5%) in Western and Central Europe and North America.