Brazil - Prevalence of HIV, total (% of population ages 15-49)

Prevalence of HIV, total (% of population ages 15-49) in Brazil was 0.500 as of 2018. Its highest value over the past 28 years was 0.500 in 2018, while its lowest value was 0.200 in 1990.

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

Source: UNAIDS estimates.

See also:

Year Value
1990 0.200
1991 0.200
1992 0.200
1993 0.300
1994 0.300
1995 0.300
1996 0.300
1997 0.300
1998 0.300
1999 0.400
2000 0.400
2001 0.400
2002 0.400
2003 0.400
2004 0.400
2005 0.500
2006 0.500
2007 0.500
2008 0.500
2009 0.500
2010 0.500
2011 0.500
2012 0.500
2013 0.500
2014 0.500
2015 0.500
2016 0.500
2017 0.500
2018 0.500

Limitations and Exceptions: The limited availability of data on health status is a major constraint in assessing the health situation in developing countries. Surveillance data are lacking for many major public health concerns. Estimates of prevalence and incidence are available for some diseases but are often unreliable and incomplete. National health authorities differ widely in capacity and willingness to collect or report information.

Statistical Concept and Methodology: HIV prevalence rates reflect the rate of HIV infection in each country's population. Low national prevalence rates can be misleading, however. They often disguise epidemics that are initially concentrated in certain localities or population groups and threaten to spill over into the wider population. In many developing countries most new infections occur in young adults, with young women especially vulnerable. Data on HIV are from the Joint United Nations Programme on HIV/AIDS (UNAIDS). Changes in procedures and assumptions for estimating the data and better coordination with countries have resulted in improved estimates of HIV and AIDS. The models, which are routinely updated, track the course of HIV epidemics and their impact, making full use of information in HIV prevalence trends from surveillance data as well as survey data. The models take into account reduced infectivity among people receiving antiretroviral therapy (which is having a larger impact on HIV prevalence and allowing HIV-positive people to live longer) and allow for changes in urbanization over time in generalized epidemics. The estimates include plausibility bounds, which reflect the certainty associated with each of the estimates.

Aggregation method: Weighted average

Periodicity: Annual


Topic: Health Indicators

Sub-Topic: Risk factors