HIV in Canada: A primer for service providers

 

Global Epidemiology of HIV

Key Points

  • An estimated 1.7 million new HIV infections occurred worldwide in 2018.
  • There were an estimated 37.9 million people with HIV worldwide in 2018.

As part of its efforts to monitor the HIV epidemic and assess the effectiveness of prevention efforts, the Joint United Nations Program on HIV/AIDS (UNAIDS) estimates the number of people with HIV (prevalence) and the number of new HIV infections in one year (incidence).

In 2018, an estimated 1.7 million new HIV infections occurred worldwide. This means an estimated 4,658 people became infected with HIV every day in 2018. The number of new infections has dropped by 40% since the peak in 1997.

There were an estimated 37.9 million people with HIV worldwide in 2018. An estimated 8.1 million people were unaware of their HIV positive status in 2018.

In 2018, an estimated 2,110 people died from an AIDS-related infection every day. This resulted in an estimated770,000 deaths as a result of AIDS in 2018. This is down from an estimated 1.7 million deaths in 2004.

Globally there are two different types of HIV epidemics. In “concentrated” epidemics, transmission occurs largely in defined vulnerable groups such as sex workers, gay men and other men who have sex with men, and people who use injection drugs. In “generalized” epidemics, transmission is sustained by sexual behaviour in the general population and would persist despite effective programs for vulnerable groups. North America has a concentrated epidemic whereas sub-Saharan Africa has a generalized epidemic.

Resource

Global HIV & AIDS statistics: 2019 fact sheet – UNAIDS

Sources

UNAIDS. Global HIV & AIDS statistics – 2019 fact sheet. 2019.  Available from: https://www.unaids.org/en/resources/fact-sheet

 

 

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