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HIV/AIDS in Africa

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Title: HIV/AIDS in Africa  
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Subject: HIV/AIDS in Africa, HIV/AIDS in Nigeria, HIV/AIDS in Kenya, HIV/AIDS in Ivory Coast, HIV/AIDS in Rwanda
Collection: Development, Health Disasters in Africa, Hiv/Aids by Region, Hiv/Aids in Africa
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HIV/AIDS in Africa

Prevalence of HIV/AIDS in Africa, total (% of population ages 15–49), in 2011 (World Bank)
  over 15%
  not available

HIV/AIDS is a major public health concern and cause of death in many parts of Africa. Although the continent is home to about 15.2 percent of the world's population,[1] Sub-Saharan Africa alone accounted for an estimated 69 percent of all people living with HIV[2] and 70 percent of all AIDS deaths in 2011.[3]

Countries in North Africa and the Horn of Africa have significantly lower prevalence rates, as their populations typically engage in fewer high-risk cultural patterns that have been implicated in the virus's spread in Sub-Saharan Africa.[4][5] Southern Africa is the worst affected region on the continent. As of 2011, HIV has infected at least 10 percent of the population in Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe.[6]

In response, a number of initiatives have been launched in various parts of the continent to educate the public on HIV/AIDS. Among these are combination prevention programmes, considered to be the most effective initiative, the abstinence, be faithful, use a condom campaign, and the Desmond Tutu HIV Foundation's outreach programs.[7]

According to a 2013 special report issued by the Joint United Nations Programme on HIV/AIDS (UNAIDS), the number of HIV positive people in Africa receiving anti-retroviral treatment in 2012 was over seven times the number receiving treatment in 2005, "with nearly 1 million added in the last year alone".[8][9]:15 The number of AIDS-related deaths in Sub-Saharan Africa in 2011 was 33 percent less than the number in 2005.[10] The number of new HIV infections in Sub-Saharan Africa in 2011 was 25 percent less than the number in 2001.[10]


  • Overview 1
  • Origins of HIV/AIDS in Africa 2
  • History 3
  • Prevention of HIV infections 4
    • Public education initiatives 4.1
    • The Role of Stigma 4.2
      • Combination prevention programmes 4.2.1
      • Abstinence, be faithful, use a condom 4.2.2
      • Combating HIV fatigue 4.2.3
    • African Union's efforts 4.3
      • AIDS Watch Africa 4.3.1
      • Roadmap on Shared Responsibility and Global Solidarity for AIDS, TB and Malaria Response in Africa 4.3.2
    • Preventing HIV transmission from pregnant women to children 4.4
  • Causes and spread 5
    • Behavioral factors 5.1
    • Economic factors 5.2
    • Health industry 5.3
    • Medical factors 5.4
      • Circumcision 5.4.1
      • Medical suspicion 5.4.2
    • Pharmaceutical industry 5.5
    • Political factors 5.6
    • Subtype factor 5.7
    • Religious factors 5.8
  • Health Care delivery 6
  • Measurement 7
  • Regional prevalence 8
    • North Africa 8.1
    • Horn of Africa 8.2
    • Central Africa 8.3
    • Eastern Africa 8.4
      • Kenya 8.4.1
      • Tanzania 8.4.2
      • Uganda 8.4.3
    • Western Africa 8.5
    • Southern Africa 8.6
      • Swaziland 8.6.1
  • Tuberculosis coinfections 9
  • See also 10
  • Notes 11
  • References 12
  • Further reading 13
  • External links 14


In an article entitled "The Impact of HIV & AIDS in Africa", the charitable organization AVERT wrote:

Regional comparisons of HIV in 2011
World region Adult HIV prevalence
(ages 15–49)[10]
Persons living
with HIV[10]
AIDS deaths, annual[10] New HIV
infections, annual[2]
Worldwide 0.8% 34,000,000 1,700,000 2,500,000
Sub-Saharan Africa 4.9% 23,500,000 1,200,000 1,800,000
South and Southeast Asia 0.3% 4,000,000 250,000 280,000
Eastern Europe and Central Asia 1.0% 1,400,000 92,000 140,000
East Asia 0.1% 830,000 59,000 89,000
Latin America 0.4% 1,400,000 54,000 83,000
Middle East and North Africa 0.2% 300,000 23,000 37,000
North America 0.6% 1,400,000 21,000 51,000
Caribbean 1.0% 230,000 10,000 13,000
Western and Central Europe 0.2% 900,000 7,000 30,000
Oceania 0.3% 53,000 1,300 2,900

Origins of HIV/AIDS in Africa

Historical prevalence of HIV-1 subtypes (2002).

The earliest known cases of human HIV infection have been linked to western equatorial Africa, probably in southeast Cameroon where groups of the central common chimpanzee live. "Phylogenetic analyses ... revealed that all HIV-1 strains known to infect humans, including HIV-1 groups M, N, and O, were closely related to just one of these SIVcpz lineages: that found in P. t. troglodytes [the central common chimpanzee]." The disease is associated with the preparation for human consumption of flesh from freshly killed chimpanzees.[12][13]

Current hypotheses also include that, once the virus jumped from chimpanzees or other apes to humans, the colonial medical practices of the 20th century helped HIV become established in human populations by 1930.[14] The virus likely moved from primates to humans when hunters came into contact with the blood of infected primates. The hunters then became infected with HIV and passed on the disease to other humans through bodily fluid contamination. This theory is known as the "Bushmeat theory." [15]

HIV made the leap from rural isolation to rapid urban transmission as a result of urbanization that occurred during the 20th century. There are many reasons for which there is such prevalence of AIDS in Africa. One of the most formative explanations is the poverty that dramatically impacts the daily lives of Africans. The book, Ethics and AIDS in Africa: A Challenge to Our Thinking, describes how “Poverty has accompanying side-effects, such as prostitution (i.e. the need to sell sex for survival), poor living conditions, education, health and health care, that are major contributing factors to the current spread of HIV/AIDS.” [16]

Researchers believe HIV was gradually spread by river travel. All the rivers in Cameroon run into the Sangha River, which joins the Congo River running past Kinshasa in the Democratic Republic of the Congo. Trade along the rivers could have spread the virus, which built up slowly in the human population. By the 1960s, about 2,000 people in Africa may have had HIV,[13] including people in Kinshasa whose tissue samples from 1959 and 1960 have been preserved and studied retrospectively.[17] The first epidemic of HIV/AIDS is believed to have occurred in Kinshasa in the 1970s, signalled by a surge in opportunistic infections such as cryptococcal meningitis, Kaposi's sarcoma, tuberculosis, and pneumonia.[18][19]


Although many governments in Sub-Saharan Africa denied that there was a problem for years, they have now begun to work toward solutions.

AIDS was at first considered a disease of gay men and drug addicts, but in Africa it took off among the general population. As a result, those involved in the fight against HIV began to emphasize aspects such as preventing transmission from mother to child, or the relationship between HIV and poverty, inequality of the sexes, and so on, rather than emphasizing the need to prevent transmission by unsafe sexual practices or drug injection. This change in emphasis resulted in more funding, but was not effective in preventing a drastic rise in HIV prevalence.[20]

The global response to HIV and AIDS has improved considerably in recent years. Funding comes from many sources, the largest of which are the Global Fund to Fight AIDS, Tuberculosis and Malaria and the President's Emergency Plan for AIDS Relief.[21]

According to the Joint United Nations Programme on HIV/AIDS (UNAIDS), the number of HIV positive people in Africa receiving anti-retroviral treatment rose from 1 million to 7.1 million between 2005 and 2012, an 805% increase. Almost 1 million of those patients were treated in 2012.[9] The number of HIV positive people in South Africa who received such treatment in 2011 was 75.2 percent higher than the number in 2009.[10]

Additionally, the number of AIDS-related deaths in 2011 in both Africa as a whole and Sub-Saharan Africa alone was 32 percent less than the number in 2005.[9][10] The number of new HIV infections in Africa in 2011 was also 33 percent less than the number in 2001, with a "24% reduction in new infections among children from 2009 to 2011."[9] In Sub-Saharan Africa, new HIV positive cases over the same period declined by 25%.[10] According to UNAIDS, these successes have resulted from "strong leadership and shared responsibility in Africa and among the global community."[8]

Prevention of HIV infections

AIDS awareness sign in central Dar es Salaam, Tanzania.

Public education initiatives

Numerous public education initiatives have been launched to curb the spread of HIV in Africa.

The Role of Stigma

Social stigma plays a significant role in the state of HIV and AIDS infection in Africa. "In a normatively HIV/AIDS-stigmatzing Sub Saharan African communities, this suspicion of one’s status by others is also applicable to individuals who are not HIV positive, but who may wish to utilize healthcare services for preventative purposes. This group of individuals under fear of suspicion may avoid being mistakingly identified as stigmatized by simply avoiding HARHS utilization.” (151) [16]

“At the individual level, persons living with HIV/AIDS in Sub-Saharan Africa likely want to conceal their stigmatized identities whenever possible in order to gain these rewards associated with having a ‘normal’ identity. The rewards of being considered normal’ in the context of high-HIV-prevalence Sub-Saharan Africa are varied and great… such rewards for which there is empirical support in this context include perceived sexual freedom, avoidance of discrimination, avoidance of community or family rejection, avoidance of losing one's job or residence, and avoidance of losing one’s sexual partners. Other potential rewards of being considered normal include avoidance of being associated with promiscuity or prostitution, avoidance of emotional, social and physical isolation and avoidance of being blamed for others’ illness” (150).[16]

Combination prevention programmes

The Joint United Nations Programme on HIV/AIDS defines combination prevention programmes as:

rights-based, evidence-informed, and community-owned programmes that use a mix of biomedical, behavioural, and structural interventions, prioritised to meet the current HIV prevention needs of particular individuals and communities, so as to have the greatest sustained impact on reducing new infections. Well-designed ... programmes are carefully tailored to national and local needs and conditions; focus resources on the mix of programmatic and policy actions required to address both immediate risks and underlying vulnerability; and ... are thoughtfully planned and managed to operate synergistically and consistently on multiple levels (e.g. individual, relationship, community, society) and over an adequate period of time. ... Using different prevention strategies in combination is not a new idea. ... [C]ombination approaches have been used effectively to generate sharp, sustained reductions in new HIV infections in diverse settings. Combination prevention reflects common sense, yet it is striking how seldom the approach has been put into practice. ... Prevention efforts to date have overwhelmingly focused on reducing individual risk, with fewer efforts made to address societal factors that increase vulnerability to HIV. ... UNAIDS' combination prevention framework puts structural interventions — including programmes to promote human rights, to remove punitive laws that block the AIDS response, and to combat gender inequality and HIV related stigma and discrimination — at the centre of the HIV prevention agenda.[22]

"It is the consensus in the HIV scientific community that abstinence, be faithful, use a condom [(ABC)] principles are vital guides for public health intervention, but are better bundled with biomedical prevention approaches; lone behavioral change approaches are not likely to stop the global pandemic."[23] Uganda has replaced its ABC strategy with a combination prevention programme because of an increase in the annual HIV infection rate. Most new infections were coming from people in long-term relationships who had multiple sexual partners.[24]

Abstinence, be faithful, use a condom

The abstinence, be faithful, use a condom (ABC) strategy to prevent HIV infection promotes safer sexual behavior and emphasizes the need for fidelity, fewer sexual partners, and a later age of sexual debut. The implementation of ABC differs among those who use it. For example, the President's Emergency Plan for AIDS Relief has focused more on abstinence and fidelity than condoms[25] while Uganda has had a more balanced approach to the three elements.[26]

The effectiveness of ABC is controversial. At the 16th International AIDS Conference in 2006, African countries gave the strategy mixed reviews. In Botswana,

[M]uch of the ABC message was getting through, but ... it was not making much of a difference. ... A program called Total Community Mobilization sent 450 AIDS counselors door-to-door, giving prevention advice, urging HIV testing and referring infected people to treatment. ... People who had talked to the counselors were twice as likely to mention abstinence and three times as likely to mention condom use when asked to describe ways to avoid infection. However, they were no more likely than the uncounseled to mention being faithful as a good strategy. The people who had been counseled were also twice as likely to have been tested for HIV in the previous year, and to have discussed that possibility with a sex partner. However, they were just as likely to have a partner outside marriage as the people who had not gotten a visit from a counselor, and they were no more likely to be using a condom in those liaisons.[27]

In Nigeria,

There was a somewhat different result in a study of young Nigerians, ages 15 to 24, most unmarried, living in the city and working in semiskilled jobs. People in specific neighborhoods were counseled with an ABC message as part of a seven-year project funded by the U.S. Agency for International Development and its British counterpart. ... The uncounseled group showed no increase in condom use -- it stayed about 55 percent. In the counseled group, however, condom use by women in their last nonmarital sexual encounter rose from 54 percent to 69 percent. For men, it rose from 64 percent to 75 percent. Stigmatizing attitudes appeared to be less common among the counseled group. ... But ... "We did not see a reduction in the number of partners," said Godpower Omoregie, the researcher from Abuja who presented the findings.[27]

In Kenya,

A survey of 1,400 Kenyan teenagers found a fair amount of confusion about ABC's messages. ... Half of the teenagers could correctly define abstinence and explain why it was important. Only 23 percent could explain what being faithful meant and why it was important. Some thought it meant being honest, and some thought it meant having faith in the fidelity of one's partner. Only 13 percent could correctly explain the importance of a condom in preventing HIV infection. About half spontaneously offered negative opinions about condoms, saying they were unreliable, immoral and, in some cases, were designed to let HIV be transmitted.[27]

Swaziland in 2010 announced that it was abandoning the ABC strategy because it was a dismal failure in preventing the spread of HIV. "If you look at the increase of HIV in the country while we've been applying the ABC concept all these years, then it is evident that ABC is not the answer," said Dr. Derek von Wissell, Director of the National Emergency Response Council on HIV/AIDS.[28]

Combating HIV fatigue

One of the greatest problems faced by African countries that have high prevalence rates, is "HIV fatigue". Africans are not interested in hearing more about a disease that they already have heard about constantly. To address this, novel approaches are required.

In 1999, the Henry J. Kaiser Family Foundation and the Bill and Melinda Gates Foundation provided major funding for the loveLife website, an online sexual health and relationship resource for teenagers.[29]

In 2011, the Botswana Ministry of Education introduced new HIV/AIDS educational technology in local schools. The TeachAIDS prevention software, developed at Stanford University, was distributed to every primary, secondary, and tertiary educational institution in the country, reaching all learners from 6 to 24 years of age nationwide.[30]

African Union's efforts

AIDS Watch Africa

During the Abuja African Union Summit on HIV/AIDS in April 2001, the heads of state and heads of government of Botswana, Ethiopia, Kenya, Mali, Nigeria, Rwanda, South Africa, and Uganda established the AIDS Watch Africa (AWA) advocacy platform. The initiative was formed to "accelerate efforts by Heads of State and Government to implement their commitments for the fight against HIV/AIDS, and to mobilize the required national and international resources."[31] In January 2012, AWA was revitalized to include all of Africa and its objectives were broadened to include malaria and tuberculosis.[32]

Roadmap on Shared Responsibility and Global Solidarity for AIDS, TB and Malaria Response in Africa

In 2012, the African Union adopted a Roadmap on Shared Responsibility and Global Solidarity for AIDS, TB and Malaria Response in Africa.[8]

This Roadmap presents a set of practical African-sourced solutions for enhancing shared responsibility and global solidarity for AIDS ... responses in Africa on a sustainable basis by 2015. The solutions are organized around three strategic pillars: diversified financing; access to medicines; and enhanced health governance. The Roadmap defines goals, results and roles and responsibilities to hold stakeholders accountable for the realization of these solutions between 2012 and 2015.[33]

Preventing HIV transmission from pregnant women to children

The Joint United Nations Programme on HIV/AIDS reported that the following sixteen African nations in 2012 "ensure[d] that more than three-quarters of pregnant women living with HIV receive antiretroviral medicine to prevent transmission to their child": Botswana, Gabon, Gambia, Ghana, Mauritius, Mozambique, Namibia, Rwanda, São Tomé and Principe, Seychelles, Sierra Leone, South Africa, Swaziland, Tanzania, Zambia and Zimbabwe.[8][10]

Causes and spread

Behavioral factors

High-risk behavioral patterns have been cited as being largely responsible for the significantly greater spread of HIV/AIDS in Sub-Saharan Africa than in other parts of the world. Chief among these are the traditionally liberal attitudes espoused by many communities inhabiting the subcontinent toward multiple sexual partners and pre-marital and outside marriage sexual activity.[4][5] HIV transmission is most likely in the first few weeks after infection, and is therefore increased when people have more than one sexual partner in the same time period. In most of the developed world outside Africa, this means HIV transmission is high among prostitutes and other people who may have more than one sexual partner concurrently. Within the cultures of sub-Saharan Africa, it is relatively common for both men and women to be carrying on sexual relations with more than one person, which promotes HIV transmission.[20] This practice is known as concurrency, which Helen Epstein describes in her book, The Invisible Cure: Africa, the West, and the Fight against AIDS, in which her research into the sexual mores of Uganda revealed the high frequency with which men and women engage in concurrent sexual relationships.[34] In addition, in sub-Saharan Africa AIDS is the leading killer and a large reason for the high transmission rates is because of the lack of education provided to youth. When infected, most children die within one year because of the lack of treatment. [35]

Economic factors

Lack of money is an obvious challenge, although a great deal of aid is distributed throughout developing countries with high HIV/AIDS rates. For African countries with advanced medical facilities, patents on many drugs have hindered the ability to make low cost alternatives.[36]

Natural disasters and conflict are also major challenges, as the resulting economic problems people face can drive many young women and girls into patterns of sex work in order to ensure their livelihood or that of their family, or else to obtain safe passage, food, shelter or other resources.[37] Emergencies can also lead to greater exposure to HIV infection through new patterns of sex work. In Mozambique, an influx of humanitarian workers and transporters, such as truck drivers, attracted sex workers from outside the area.[37] Similarly, in the Turkana District of northern Kenya, drought led to a decrease in clients for local sex workers, prompting the sex workers to relax their condom use demands and search for new truck driver clients on main highways and in peri-urban settlements.[37]

Health industry

Measuring an HIV patient's CD4 count at the Kyabugimbi Health Center in Uganda.

When family members get sick with HIV or other sicknesses, family members often end up selling most of their belongings in order to provide health care for the individual. Medical facilities in many African countries are lacking. Many health care workers are also not available, in part due to lack of training by governments and in part due to the wooing of these workers by foreign medical organisations where there is a need for medical professionals.[38] This is done largely through immigration laws that encourage recruitment in professional fields (special skill categories) like doctors and nurses in countries like Australia, Canada, and the United States.

Medical factors


According to a 2007 report, male circumcision and female genital mutilation were statistically associated with an increased incidence of HIV infection among the females in Kenya and the males in Kenya, Lesotho, and Tanzania who self-reported that they both underwent the procedure and were virgins.[Note 1] "Among adolescents, regardless of sexual experience, circumcision was just as strongly associated with prevalent HIV infection." Circumcised adults, however, were statistically less likely to be HIV positive than their uncircumcised counterparts, especially among older age groups.[Note 2][39]

Similarly, a randomized, controlled intervention trial in South Africa from 2005 found that male circumcision "provides a degree of protection against acquiring HIV infection [by males], equivalent to what a vaccine of high efficacy would have achieved."[40]

Medical suspicion

An HIV/AIDS educational outreach session in Angola.

There are high levels of medical suspicion throughout Africa, and there is evidence that such distrust may have a significant impact on the use of medical services.[41][42] The distrust of modern medicine is sometimes linked to theories of a "Western Plot"[43] of mass sterilization or population reduction, perhaps a consequence of several high profile incidents involving western medical practitioners.[44]

Pharmaceutical industry

African countries are also still fighting against what they perceive as unfair practices in the international pharmaceutical industry.[45] Medical experimentation occurs in Africa on many medications, but once approved, access to the drug is difficult.[45] Drug companies must make a return on the money they invest on research and work to obtain patents on their intellectual capital investments which restrict generic alternatives production. Patents on medications have prevented access to medications as well as the growth in research for more affordable alternatives. These pharmaceuticals insist that drugs should be purchased through them. South African scientists in a combined effort with American scientists from Clinton Foundation, are working to reduce the cost of HIV/AIDS medications in Africa and elsewhere. For example, Inder Singh oversaw a program which reduced the cost of pediatric HIV/AIDS drugs by 80 to 92 percent by working with manufacturers to reduce production and distribution costs.[48] Manufacturers often cite distribution and production difficulties in developing markets, which create a substantial barrier to entry.

Political factors

Major African political leaders have denied the link between HIV and AIDS, favoring alternate theories.[49] The scientific community considers the evidence that HIV causes AIDS to be conclusive and rejects AIDS-denialist claims as pseudoscience based on conspiracy theories, faulty reasoning, cherry picking, and misrepresentation of mainly outdated scientific data. Despite its lack of scientific acceptance, AIDS denialism has had a significant political impact, especially in South Africa under the former presidency of Thabo Mbeki.

Subtype factor

In Africa, subtype C of HIV-1 is very common, whereas it is rare in America or Europe. People with subtype C progress to AIDS faster than those with subtype A, the predominant subtype in America and Europe (see HIV disease progression rates#HIV subtype variation and effect on progression rates).

Religious factors

Pressure from both Christian and Muslim religious leaders has resulted in the banning of a number of safe-sex campaigns, including condom promoting advertisements being banned in Kenya.[50]

Health Care delivery

Many people living with HIV in low and middle income countries who need antiretroviral therapy are unable to access or remain in care. This is often because of the time and cost required to travel to health centres as well as an inadequate number of trained staff such as medical doctors and specialists to provide treatment. One approach to improve access to HIV care is to provide antiretroviral therapy close to people’s homes. A systematic review found that when antiretroviral treatment was initiated at the hospital but followed up at a health centre closer to home, fewer patients died or were lost to follow up. The research also did not detect a difference in the numbers of patients who died or were lost to follow up when they received maintenance treatment in the community rather than in a health centre or hospital.[51]


Archbishop Desmond Tutu gets an HIV test on the Desmond Tutu HIV Foundation's Tutu Tester, a mobile test unit.

Prevalence measures include everyone living with HIV and AIDS, and present a delayed representation of the epidemic by aggregating the HIV infections of many years. Incidence, in contrast, measures the number of new infections, usually over the previous year. There is no practical, reliable way to assess incidence in Sub-Saharan Africa. Prevalence in 15–24 year old pregnant women attending antenatal clinics is sometimes used as an approximation. The test done to measure prevalence is a serosurvey in which blood is tested for the presence of HIV.

Health units that conduct serosurveys rarely operate in remote rural communities, and the data collected also does not measure people who seek alternate healthcare. Extrapolating national data from antenatal surveys relies on assumptions which may not hold across all regions and at different stages in an epidemic.

Recent national population or household-based surveys collecting data from both sexes, pregnant and non-pregnant women, and rural and urban areas, have adjusted the recorded national prevalence levels for several countries in Africa and elsewhere. These, too, are not perfect: people may not participate in household surveys because they fear they may be HIV positive and do not want to know their test results. Household surveys also exclude migrant labourers, who are a high risk group.

Thus, there may be significant disparities between official figures and actual HIV prevalence in some countries.

A minority of scientists claim that as many as 40 percent of HIV infections in African adults may be caused by unsafe medical practices rather than by sexual activity.[52] The World Health Organization states that about 2.5 percent of HIV infections in Sub-Saharan Africa are caused by unsafe medical injection practices and the "overwhelming majority" by unprotected sex.[53]

Regional prevalence

In contrast to areas in North Africa and the Horn of Africa, traditional cultures and religions in much of Sub-Saharan Africa have generally exhibited a more liberal attitude vis-a-vis female out-of-marriage sexual activity. The latter includes practices such as multiple sexual partners and unprotected sex, high-risk cultural patterns that have been implicated in the much greater spread of HIV in the subcontinent.[5]

North Africa

Uniquely among countries in this region, Morocco's HIV prevalence rate has increased from less than 0.1 percent in 2001 to 0.2 percent in 2011.[10]

Country Adult prevalence
ages 15–49, 2011
Adult prevalence
ages 15–49, 2001[10]
Number of people
living with HIV, 2011[6]
Number of people
living with HIV, 2001[10]
AIDS deaths, 2011[6] AIDS deaths, 2001[10] New HIV infections, 2011[10] New HIV infections, 2001[10]
Algeria 0.1%[6] <0.1% 13,000-28,000 not available <1,000-1,500 <200-<500 not available not available
Egypt <0.1%[6] <0.1% 9,500 9,100 <1,000 <500 not available not available
Libya <0.2%[6] not available not available not available not available not available not available not available
Morocco 0.2%[6] <0.1% 32,000 12,000 1,600 <1,000 not available not available
Sudan 0.4%[10] 0.5% not available not available 5,600 6,000 not available not available
Tunisia <0.1%[6] <0.1% 1,700 <1,000 <100 <100 not available not available

Horn of Africa

As with North Africa, the HIV infection rates in the Horn of Africa are generally quite low. This has been attributed to the Muslim nature of many of the local communities and adherence to Islamic morals.[5]

Ethiopia's HIV prevalence rate has decreased from 3.6 percent in 2001 to 1.4 percent in 2011.[10] The number of new infections per year also has decreased from 130,000 in 2001 to 24,000 in 2011.[10]

Country Adult prevalence
ages 15–49, 2011[6]
Adult prevalence
ages 15–49, 2001[10]
Number of people living
with HIV, 2011[6]
Number of people living
with HIV, 2001[10]
AIDS deaths, 2011[6] AIDS deaths, 2001[10] New HIV infections, 2011[10] New HIV infections, 2001[10]
Djibouti 1.4% 2.7% 9,200 12,000 <1,000 1,000 <1,000 1,300
Eritrea 0.6% 1.1% 23,000 23,000 1,400 1,500 not available not available
Ethiopia 1.4% 3.6% 790,000 1,300,000 54,000 100,000 24,000 130,000
Somalia 0.7% 0.8% 35,000 34,000 3,100 2,800 not available not available

Central Africa

HIV infection rates in central Africa are generally moderate to high.[4]

Country Adult prevalence
ages 15–49, 2011
Adult prevalence
ages 15–49, 2001[10]
Number of people
living with HIV, 2011
Number of people
living with HIV, 2001[10]
AIDS deaths, 2011 AIDS deaths, 2001[10] New HIV infections, 2011[10] New HIV infections, 2001[10]
Angola 2.1%[6] 1.7% 230,000[6] 130,000 12,000[6] 8,200 23,000 20,000
Cameroon 4.6%[6] 5.1% 550,000[6] 450,000 34,000[6] 28,000 43,000 57,000
Central African Republic 4.6%[6] 8.1% 130,000[6] 170,000 10,000[6] 16,000 8,200 15,000
Chad 3.1%[6] 3.7% 210,000[6] 170,000 12,000[6] 13,000 not available not available
Congo 3.3%[6] 3.8% 83,000[6] 74,000 4,600[6] 6,900 7,900 7,200
Democratic Republic of the Congo 1.2%-1.6%[4] not available 430,000-560,000[4] not available 26,000-40,000 (2009)[4] not available not available not available
Equatorial Guinea 4.7%[6] 2.5% 20,000[6] 7,900 <1,000[6] <500 not available not available
Gabon 5.0%[6] 5.2% 46,000[6] 35,000 2,500[6] 2,100 3,000 4,900
São Tomé and Principe 1.0%[6] 0.9% <1,000[6] <1,000 <100[6] <100 not available not available

Eastern Africa

World AIDS Day 2006 event in Kenya.

HIV infection rates in eastern Africa are generally moderate to high.


Kenya, according to a 2008 report from the Joint United Nations Programme on HIV/AIDS, had the third largest number of individuals in Sub-Saharan Africa living with HIV.[54] It also had the highest prevalence rate of any country outside of Southern Africa.[54] Kenya's HIV infection rate dropped from around 14 percent in the mid-1990s to 5 percent in 2006,[4] but rose again to 6.2 percent by 2011.[54] The number of newly infected people per year, however, decreased by almost 30 percent, from 140,000 in 2001 to 100,000 in 2011.[10]

As of 2012, Nyanza Province had the highest HIV prevalence rate at 13.9 percent, with the North Eastern Province having the lowest rate at 0.9 percent.[54]

Christian men and women also had a higher infection rate than their Muslim counterparts.[54] This discrepancy was especially marked among women, with Muslim women showing a rate of 2.8 percent versus 8.4 percent among Protestant women and 8 percent among Catholic women.[54] HIV was also more common among the wealthiest than among the poorest (7.2 percent versus 4.6 percent).[54]

Historically, HIV had been more prevalent in urban than rural areas, although the gap is closing rapidly.[54] Men in rural areas are now more likely to be HIV-infected (at 4.5 percent) than those in urban areas (at 3.7 percent).[54]


Between 2004 and 2008, the HIV incidence rate in Tanzania for ages 15–44 slowed to 3.37 per 1,000 person-years (4.42 for women and 2.36 for men).[55] The number of newly infected people per year increased slightly, from 140,000 in 2001 to 150,000 in 2011.[10] There were also significantly fewer HIV infections in Zanzibar, which in 2011 had a prevalence rate of 1.0 percent compared to 5.3 percent in mainland Tanzania.[56]


Uganda has registered a gradual decrease in its HIV rates from 10.6 percent in 1997, to a stabilized 6.5-7.2 percent since 2001.[4][5] This has been attributed to changing local behavioral patterns, with more respondents reporting greater use of contraceptives and a two-year delay in first sexual activity as well as fewer people reporting casual sexual encounters and multiple partners.[5]

The number of newly infected people per year, however, has increased by over 50 percent, from 99,000 in 2001 to 150,000 in 2011.[10] More than 40 percent of new infections are among married couples, indicating widespread and increasing infidelity.[57] This increase has caused alarm. The director of the Centre for Disease Control - Uganda, Wuhib Tadesse, said in 2011 that,

for every person started on antiretroviral therapy, there are three new HIV infections[,] and this is unsustainable. We are ... very concerned. ... [C]omplacence could be part of the problem. Young people nowadays no longer see people dying; they see people on ARVs but getting children. We need to re-examine our strategies.... Leaders at all levels are spending ... [more] time in workshops than in the communities to sensitive the people[,] and this must stop."[58]
Country Adult prevalence
ages 15–49, 2011
Adult prevalence
ages 15–49, 2001[10]
Number of people living
with HIV, 2011[6]
Number of people living
with HIV, 2001[10]
AIDS deaths, 2011[6] AIDS deaths, 2001[10] New HIV infections, 2011[10] New HIV infections, 2001[10]
Burundi 1.3%[6] 3.5% 80,000 130,000 5,800 13,000 3,000 6,900
Comoros 0.1%[6] <0.1% <500 <100 <100 <100 not available not available
Kenya 6.2%[6] 8.5% 1,600,000 1,600,000 62,000 130,000 100,000 140,000
Madagascar 0.3%[6] 0.3% 34,000 22,000 2,600 1,500 not available not available
Mauritius 1.0%[6] 0.9% 7,400 6,600 <1,000 <500 not available not available
Mayotte not available not available not available not available not available not available not available not available
Réunion not available not available not available not available not available not available not available not available
Rwanda 2.9%[6] 4.1% 210,000 220,000 6,400 21,000 10,000 19,000
Seychelles not available[6] not available not available not available not available not available not available not available
South Sudan 3.1%[6] not available 150,000 not available 11,000 not available not available not available
Tanzania 5.1%[56] 7.2% 1,600,000 1,400,000 84,000 130,000 150,000 140,000
Uganda 7.2%[6] 6.9% 1,400,000 990,000 62,000 100,000 150,000 99,000

Western Africa

Western Africa has generally moderate levels of infection of both HIV-1 and HIV-2. The onset of the HIV epidemic in the region began in 1985 with reported cases in Benin,[59] Mali, and Nigeria.[60] These were followed in 1986 by Burkina Faso, Côte d'Ivoire,[61] Ghana, Liberia, and Senegal. The epidemic began in Niger, Sierra Leone, and Togo in 1987; in The Gambia, Guinea, and Guinea-Bissau in 1989; and in Cape Verde in 1990.

HIV prevalence in western Africa is lowest in Senegal and highest in Nigeria, which has the second largest number of people living with HIV in Africa after South Africa. Nigeria's infection rate (number of patients relative to the entire population), however, is much lower (3.7 percent) compared to South Africa's (17.3 percent).

The main driver of infection in the region is commercial sex. In the Ghanaian capital of Accra, for example, 80 percent of HIV infections in young men had been acquired from women who sell sex. In Niger in 2011, the national HIV prevalence rate for ages 15–49 was 0.8 percent while for sex workers it was 36 percent.[10]

Country Adult prevalence
ages 15–49, 2011[6]
Adult prevalence
ages 15–49, 2001[10]
Number of people living
with HIV, 2011[6]
Number of people living
with HIV, 2001[10]
AIDS deaths, 2011[6] AIDS deaths, 2001[10] New HIV infections, 2011[10] New HIV infections, 2001[10]
Benin 1.2% 1.7% 64,000 66,000 2,800 6,400 4,900 5,300
Burkina Faso 1.1% 2.1% 120,000 150,000 6,800 15,000 7,100 13,000
Cape Verde 1.0% 1.0% 3,300 2,700 <200 <500 not available not available
Côte d'Ivoire 3.0% 6.2% 360,000 560,000 23,000 50,000 not available not available
Gambia 1.5% 0.8% 14,000 5,700 <1,000 <500 1,300 1,200
Ghana 1.5% 2.2% 230,000 250,000 15,000[Note 3] 18,000 13,000 28,000
Guinea 1.4% 1.5% 85,000 72,000 4,000[Note 4] 5,100 not available not available
Guinea-Bissau 2.5% 1.4% 24,000 9,800 <1,000 <1,000 2,900 1,800
Liberia 1.0% 2.5% 25,000 39,000 2,300[Note 5] 2,500 not available not available
Mali 1.1% 1.6% 110,000 110,000 6,600 9,700 8,600 12,000
Mauritania 1.1% 0.6% 24,000 10,000 1,500 <1,000 not available not available
Niger 0.8% 0.8% 65,000 45,000 4,000 3,200 6,400 6,200
Nigeria 3.7% 3.7% 3,400,000 2,500,000 210,000[Note 6] 150,000 340,000 310,000
Senegal 0.7% 0.5% 53,000 24,000 1,600 1,400 not available not available
Sierra Leone 1.6% 0.9% 49,000 21,000 2,600 <1,000 3,900 4,500
Togo 3.4% 4.1% 150,000 120,000 8,900[Note 7] 8,100 9,500 17,000

Southern Africa

Graphs of life expectancy at birth for some Sub-Saharan countries showing the fall in the 1990s primarily due to the AIDS pandemic.[62]

In the mid-1980s, HIV and AIDS were virtually unheard of in southern Africa. However, it is now the worst-affected region in the world. Of the nine southern African countries (Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe), four are estimated to have an infection rate of over 15 percent.

In Botswana, the number of newly infected people per year has declined by 67 percent, from 27,000 in 2001 to 9,000 in 2011. In Malawi, the decrease has been 54 percent, from 100,000 in 2001 to 46,000 in 2011. All but two of the other countries in this region have also recorded major decreases (Namibia, 62 percent; Zambia, 54 percent; Zimbabwe, 47 percent; South Africa, 38 percent; Swaziland, 32 percent). The number has remained virtually the same in Lesotho and Mozambique.[10]

Zimbabwe's first reported case of HIV was in 1985.[63][64]

Aside from polygynous relationships, which can be quite prevalent in parts of Africa, there are also widespread practices of sexual networking that involve multiple overlapping or concurrent sexual partners.[65] Men's sexual networks, in particular, tend to be quite extensive,[66][67] a fact that is tacitly accepted or even encouraged by many communities. Along with having multiple sexual partners, unemployment and population displacements resulting from drought and conflict have contributed to the spread of HIV/AIDS.

A 2008 study in Botswana, Namibia, and Swaziland found that intimate partner violence, extreme poverty, education, and partner income disparity explained almost all of the differences in HIV status among adults aged 15–29 years. Among young women with any one of these factors, the HIV rate increased from 7.7 percent with no factors to 17.1 percent. Approximately 26 percent of young women with any two factors were HIV positive, with 36 percent of those with any three factors and 39.3 percent of those with all four factors being HIV-positive.[68]

Most HIV infections found in southern Africa are HIV-1, the world's most common HIV infection. It predominates everywhere except for western Africa, where HIV-2 is more frequent.

Country Adult prevalence
ages 15–49, 2011[6]
Adult prevalence
ages 15–49, 2001[10]
Number of people
living with HIV, 2011[6]
Number of people
living with HIV, 2001[10]
AIDS deaths, 2011[6] AIDS deaths, 2001[10] New HIV infections, 2011[10] New HIV infections, 2001[10]
Botswana 23.4% 27.0% 300,000 270,000 4,200 18,000 9,000 27,000
Lesotho 23.3% 23.4% 320,000 250,000 14,000[Note 8] 15,000 26,000 26,000
Malawi 10.0% 13.8% 910,000 860,000 44,000[Note 9] 63,000 46,000 100,000
Mozambique 11.3% 9.7% 1,400,000 850,000 74,000 46,000 130,000 140,000
Namibia 13.4% 15.5% 190,000 160,000 5,200[Note 10] 8,600 8,800 23,000
South Africa 17.3% 15.9% 5,600,000 4,400,000 270,000[Note 11] 210,000 380,000 610,000
Swaziland 26.0% 22.2% 190,000 120,000 6,800[Note 12] 6,700 13,000 19,000
Zambia 12.5% 14.4% 970,000 860,000 31,000 72,000 51,000 110,000
Zimbabwe 14.9% 25.0% 1,200,000 1,800,000 58,000 150,000 74,000 140,000


As of 2011, the HIV prevalence rate in Swaziland was the highest in the world at 26.0 percent of persons aged 15–49.[6] The United Nations Development Programme wrote in 2005,

The immense scale of AIDS-related illness and deaths is weakening governance capacities for service delivery, with serious consequences on food security, economic growth[,] and human development. AIDS undermines the capacities of individuals, families, communities[,] and the state to fulfill their roles and responsibilities in society. If current trends are not reversed, the longer-term survival of Swaziland as a country will be seriously threatened.[69]

The HIV epidemic in Swaziland has reduced its life expectancy at birth to 49 for men and 51 for women (based on 2009 data).[70] Life expectancy at birth in 1990 was 59 for men and 62 for women.[71]

Based on 2011 data, Swaziland's crude death rate of 19.51 per 1,000 people per year was the third highest in the world, behind only Lesotho and Sierra Leone.[72] HIV/AIDS in 2002 caused 64 percent of all deaths in the country.[73]

Tuberculosis coinfections

Workshop on HIV/AIDS and Tuberculosis in South Africa.

Much of the deadliness of the epidemic in Sub-Saharan Africa is caused by a deadly synergy between HIV and tuberculosis, termed a "co-epidemic".[74] The two diseases have been "inextricably bound together" since the beginning of the HIV epidemic.[75] "Tuberculosis and HIV co-infections are associated with special diagnostic and therapeutic challenges and constitute an immense burden on healthcare systems of heavily infected countries like Ethiopia."[76] In many countries without adequate resources, the tuberculosis case rate has increased five to ten-fold since the identification of HIV.[75] Without proper treatment, an estimated 90 percent of persons living with HIV die within months after contracting tuberculosis.[74] The initiation of highly active antiretroviral therapy in persons coinfected with tuberculosis can cause an immune reconstitution inflammatory syndrome with a worsening, in some cases severe worsening, of tuberculosis infection and symptoms.[77]

An estimated 874,000 people in Sub-Saharan Africa were living with both HIV and tuberculosis in 2011,[10] with 330,000 in South Africa, 83,000 in Mozambique, 50,000 in Nigeria, 47,000 in Kenya, and 46,000 in Zimbabwe.[78] In terms of cases per 100,000 population, Swaziland's rate of 1,010 was by far the highest in 2011.[78] In the following 20 African countries, the cases-per-100,000 coinfection rate has increased at least 20 percent between 2000 and 2011: Algeria, Angola, Chad, Comoros, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea, The Gambia, Lesotho, Liberia, Mauritania, Mauritius, Morocco, Mozambique, Senegal, Sierra Leone, South Africa, Swaziland, Togo, and Tunisia.

Since 2004, however, tuberculosis-related deaths among people living with HIV have fallen by 28 percent in Sub-Saharan Africa, which is home to nearly 80 percent of the people worldwide who are living with both diseases.[10]

Country Concurrent
infections, 2011
(cases per 100,000
infections, 2011
infections, 2000
(cases per 100,000
infections, 2000
Algeria 1 360 0.3 100
Egypt <0.1 43 <0.1 56
Libya 3.4 220 not available not available
Morocco 0.9 300 0.4 110
Sudan 8.2 2,800 9.3 3,200
Tunisia 0.6 66 0.6 53
Djibouti 63 570 86 730
Eritrea 8.2 440 20 750
Ethiopia 45 38,000 141 93,000
Somalia 22 2,100 27 2,000
Angola 43 8,500 44 6,100
Cameroon 93 19,000 130 20,000
Central African Republic 159 7,100 591 22,000
Chad 45 5,200 51 4,200
Congo 119 4,900 126 3,900
Democratic Republic of the Congo 49 34,000 57 28,000
Equatorial Guinea 52 370 47 250
Gabon 185 2,800 203 2,500
Sao Tome and Principe 9 15 9.7 14
Burundi 30 2,600 121 7,700
Comoros 1.4 11 0 <10
Kenya 113 47,000 149 47,000
Madagascar 0.6 130 0.8 120
Mauritius 1.6 21 1.1 13
Mayotte not available not available not available not available
Réunion not available not available not available not available
Rwanda 27 2,900 141 11,000
Seychelles 5.8 <10 not available not available
South Sudan not available not available not available not available
Tanzania 65 30,000 106 36,000
Uganda 102 35,000 244 59,000
Benin 12 1,100 20 1,300
Burkina Faso 9.5 1,600 22 2,700
Cape Verde 19 97 19 84
Côte d'Ivoire 50 10,000 155 26,000
Gambia 45 800 18 230
Ghana 18 4,600 47 9,000
Guinea 47 4,800 58 4,900
Guinea-Bissau 99 1,500 25 310
Liberia 31 1,300 33 940
Mali 9.4 1,500 16 1,800
Mauritania 43 1,500 21 550
Niger 11 1,700 18 2,000
Nigeria 30 50,000 42 52,000
Senegal 14 1,700 7.9 750
Sierra Leone 64 3,800 20 810
Togo 16 1,000 18 840
Botswana 292 5,900 611 11,000
Lesotho 481 11,000 425 8,300
Malawi 114 18,000 324 36,000
Mozambique 347 83,000 279 51,000
Namibia 359 8,400 787 15,000
South Africa 650 330,000 317 140,000
Swaziland 1,010 12,000 607 6,500
Zambia 285 38,000 493 50,000
Zimbabwe 360 46,000 666 83,000

See also


  1. ^ Kenyan females: 3.2 percent versus 1.4 percent. Kenyan males: 1.8 percent versus 0.0 percent. Lesothoan males: 6.1 percent versus 1.9 percent. Tanzanian males: 2.9 percent versus 1.0 percent.
  2. ^ Kenyan females: 4.8 percent versus 12.2 percent. Kenyan males: 4.0 percent versus 25.4 percent. Lesothoan males: 26.3 percent versus 28.8 percent. Tanzanian males: 8.5 percent versus 10.8 percent.
  3. ^ The number of AIDS deaths in Ghana in 2006 was 22,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  4. ^ The number of AIDS deaths in Guinea in 2006 was 6,100. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  5. ^ The number of AIDS deaths in Liberia in 2006 was 3,400. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  6. ^ The number of AIDS deaths in Nigeria in 2006 was 220,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  7. ^ The number of AIDS deaths in Togo in 2006 was 11,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  8. ^ The number of AIDS deaths in Lesotho in 2006 was 22,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  9. ^ The number of AIDS deaths in Malawi in 2006 was 75,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  10. ^ The number of AIDS deaths in Namibia in 2006 was 12,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  11. ^ The number of AIDS deaths in South Africa in 2006 was 390,000. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006
  12. ^ The number of AIDS deaths in Swaziland in 2006 was 9,800. Data on the size of the HIV/AIDS epidemic: Number of deaths due to AIDS by country, World Health Organization, 2006


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Further reading

  • Encyclopedia of AIDS: A Social, Political, Cultural, and Scientific Record of the HIV Epidemic, Raymond A. Smith (ed), Penguin Books. ISBN 0-14-051486-4.
  • John Iliffe, "The African AIDS Epidemic: A History," Jamedn s Currey, 2006, ISBN 0-85255-890-2
  • Pieter Fourie, "The Political Management of HIV and AIDS in South Africa: One burden too many?" Palgrave Macmillan, 2006, ISBN 0-230-00667-1

External links

  • AIDS Turns Africa's Demographics Upside Down, Allianz Knowledge, October 18, 2007
  • AIDS: Voices From Africa - slideshow by Life magazine
  • Aids Clock (UNFPA)
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