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Women and HIV in Sub-Saharan Africa

AIDS Research and Therapy volume 10, Article number: 30 (2013) Cite this article

Abstract

Thirty years since the discovery of HIV, the HIV pandemic in sub-Saharan Africa accounts for more than two thirds of the world’s HIV infections. Southern Africa remains the region most severely affected by the epidemic. Women continue to bear the brunt of the epidemic with young women infected almost ten years earlier compared to their male counterparts. Epidemiological evidence suggests unacceptably high HIV prevalence and incidence rates among women. A multitude of factors increase women’s vulnerability to HIV acquisition, including, biological, behavioral, socioeconomic, cultural and structural risks. There is no magic bullet and behavior alone is unlikely to change the course of the epidemic. Considerable progress has been made in biomedical, behavioral and structural strategies for HIV prevention with attendant challenges of developing appropriate HIV prevention packages which take into consideration the socioeconomic and cultural context of women in society at large.

Introduction

Sub-Saharan Africa (SSA) remains the region most affected by the HIV epidemic. Almost three quarters (69%) of the 23.5 million people infected worldwide reside in this region [1]. Most countries in SSA report a generalized epidemic (infection rates of > 1%) with pockets of concentrated epidemics in key populations [1]. South Africa remains the country with over 6 million people reported to be infected with HIV [2]. Swaziland has the highest adult prevalence rate of 26.5% followed by South Africa, Namibia and Mozambique at 17.9%, 13.3% and 11.1% respectively [2]. Transmission is mainly through heterosexual sex, with women disproportionately infected compared to their male counterparts. It is reported that every minute one young woman becomes infected with HIV [3]. The purpose of this review is to discuss the HIV epidemic among women in SSA, associated risks for HIV acquisition, and to provide a brief update on HIV prevention options which may collectively impact on reducing incidence of HIV infection.

HIV and women in Africa

In SSA, women bear the brunt of the HIV epidemic [2]. In 2011, 92% of pregnant women who were HIV positive were living in this region [4]. Most countries in SSA report the state of the epidemic based on their ante-natal surveillance data with limited data on HIV incidence due to the difficulty in accurately measuring HIV incidence rates. A number of studies conducted among non-pregnant women in parts of east and southern Africa suggest prevalence rates ranging from 14.5% (95% CI 11.2 – 18.4) in east Africa to 38.7% (95% CI 34.2 – 43.3) in Lusaka (Zambia) and 39.5% (95% CI 35.1 – 44.0) in Durban, South Africa [5]. There have been reports of a decline or stabilizing in HIV prevalence among women in southern Africa [6, 7]. However, HIV incidence data from large scale clinical trials and cohort studies suggests that the low prevalence masks high HIV incidence rates [8–11]. Risk factor analysis of these cohorts of women from various HIV prevention trials suggest that being under the age of 25 years, having had one sexually transmitted infection (STI) in the past and being unmarried were significantly associated with high risk of HIV seroconversion [12, 13]. Rehle et al. substantiated these results in the 2013 Human Sciences Research Council (HSRC) household survey which showed that being young and unmarried increased the risk of HIV acquisition among South African women [14].

Factors that increase women’s vulnerability to HIV in Africa

The disproportionate impact of the HIV epidemic on women can be attributable to several factors including biological, social, behavioral, cultural, economic and structural. In SSA a combination of these factors has led to the disparate increase in HIV infection rates among women compared to their male counterparts [15].

Biological risk factors

Women are at a greater physiological risk of contracting HIV than men. This is in part because women have a greater mucosal surface area exposed to pathogens and infectious fluid for longer periods during sexual intercourse and are likely to face increased tissue injury. Young women are at particularly high risk due to cervical ectopy which facilitates greater exposure of target cells to trauma and pathogens in the vagina [16]. It has been well documented that STIs increase the risk of HIV acquisition [17]. For women, the risk is increased due to difficulty in diagnosing STIs which are often asymptomatic in presentation [18], thus making treatment difficult [16]. A study by Ramjee et al.[5] determined the prevalence of STIs (such as Neisseria Gonorrhea, Chlamydia Trachomatis, Syphilis, and Trichomonas Vaginalis) at 4 clinical trials sites namely Durban and Hlabisa (South Africa), Lusaka (Zambia) and Moshi (Tanzania). The study showed that women at the South African sites were 3 times more likely to acquire an STI than participants at the Tanzanian and Zambian sites. Studies on HIV/STI “hot spots” among women in communities in the greater Durban area in the province of KwaZulu-Natal (South Africa) theorize an overlap of prevalence and incidence of these infections, suggesting increased risk of HIV acquisition in STI/HIV “hot spot” areas within these communities [19].

Hormones such as progesterone are reported to be playing a role in a woman’s biological vulnerability to HIV infection. Observational evidence suggests that progesterone containing injectable contraception depot medroxyprogesterone acetate (DMPA) may be putting women at higher risk of HIV acquisition [20–23]. There is however some conflicting studies which have not observed this risk [24–26]. Injectable contraception is one of the most widely used contraceptive methods of choice among women in SSA, the use of which is on the rise in certain countries such as Kenya, Madagascar and Malawi [27]. Based on conflicting evidence on the role of DMPA on HIV acquisition, the World Health Organization (WHO) released a statement recommending that women on hormonal injectable progestin contraception should be counseled to use condoms in conjunction with pregnancy prevention methods to prevent HIV acquisition [28].

Studies in Uganda, Rwanda and Zimbabwe have shown that pregnant women are at a higher risk of HIV infection than lactating or other women, possibly due to physiological changes that a woman undergoes during pregnancy [29]. High levels of oestrogen and progesterone either during pregnancy or from exogenous sources could cause changes in the structure of the genital mucosa or cause immunological changes, such as an increase in mucosal lymphoid aggregates or hormone-induced overexpression of co-receptors associated with HIV infection. Increased levels of oestrogen are also associated with cervical ectopy in young women which in turn increases risk to HIV infection [29].

Supporting evidence suggests that women have a window of vulnerability approximately seven to ten days after ovulation in their menstrual cycle in which the potential for viral infectivity in the female reproductive tract is increased. This is due to the suppressing influence of sex hormones on the innate, humoral and cell-mediated immune systems. This takes place in the upper and lower female reproductive tract, and overlaps with the upregulation of co-receptors for HIV uptake and the recruitment of potentially infectable cells [30].

Contextual variability in risk

For women in SSA, probabilities of HIV exposure, acquisition and transmission is influenced by a range of factors such as infectiousness of the male partner according to the stage of the disease, or presence of ulcers in the male partner in the event of unprotected sexual intercourse. At a broader societal level, several factors influence the scale and rate of the epidemic spread such as overall HIV and STI prevalence, sexual practices, marriage and other cultural norms including structural factors not in control of the individual.

The dominant patriarchal culture and society in Africa exacerbates women’s inferiority and their disparate health status. Here, the needs and desires of women are not considered significant and often women play no part in sexual decision making, nor are they allowed to express their sexuality [31, 32]. There may be violent consequences if a woman were to take the initiative in sex, suggest condom use or refuse sexual advances [31]. In certain cultures men are regarded as the heads of the family, decision-makers and the ones who control resources and finances while women are expected to respect their husbands, accept polygamous relationships and fulfill family and community tasks [33]. Cultural expectations of masculinity encourage men to assume the patriarchal attitude that wives, partners and daughters are the possessions of men, and most husbands expect or demand their conjugal ‘rights’ [33]. One cultural practice that perpetuates the idea that a woman is her husband’s property is “bride payments”, where the bride’s family receives financial compensation from the potential husband. Due to the issue of bride payment or “lobola” many men in relationships are unable to “pay” for the woman they would like to marry resulting in many men moving from one relationship to another leaving the woman (more likely with his children) to economically fend for herself and the children [34, 35]. Women then look for other partners resulting in a complex web of cultural practice and multiple partnerships placing both men and women at high risk of HIV infection.

In countries such as Malawi, Kenya, Zambia, and Botswana, it is widely believed that a widow becomes unclean after her late husband’s burial ceremonies. In cleansing rituals, an unprotected sexual act is believed to purify the recipient through the semen entering the woman’s body [36]. Community elders identify a man with whom the widow has to have sex; someone who has often had several sexual partners in the process of cleansing others. These practices often put widowed women at greater risk of HIV and other STI infection [36]. The ritual is also practiced in other situations, such as after a birth the mother, regardless of marital status, has unprotected sex with a man believing the act will cleanse the baby and encourage health; after miscarriage; and where a man has acquired a boat for fishing, a woman has sex with the man to cleanse away evil spirits which may capsize the boat [36]. Sexual cleansing is also believed to ‘cleanse’ people living with HIV; in some African countries it is believed that sex with a virgin can cure the disease [16, 36].

The practice of “dry sex” is reportedly high in some southern African countries [36]. This practice involves inserting drying agents into the vagina (herbs, a dry cloth, or even chemicals) to produce the required tight, dry and “hot” vagina. This practice is believed to provide heightened sexual pleasure for the male partner. For women, it causes friction and possible tearing of delicate vaginal mucosal lining, increasing the risk of HIV acquisition. Use of harmful chemicals can cause inflammation and lesions and alter the natural vaginal pH level, potentially increasing women’s risk of contracting HIV. However, no studies have confirmed the role of “dry sex” in HIV acquisition [29, 36, 37]. Deeply entrenched traditional and cultural practices; often interwoven with religious beliefs make change in behaviour very difficult and complex [36].

Virginity testing, (a physical examination of girls and women to determine whether the hymen is unbroken), is now widely regarded as a human rights abuse. Although virginity testing was a common traditional practice among unmarried couples in South Africa and Uganda, it was, until recently, no longer commonplace. However, in an attempt to promote abstinence among girls, this practice has seen resurgence [36]. A concern with this ‘forced abstinence’ is that girls and unmarried women may engage in risky anal sex to avoid failing virginity tests, placing them at even higher risk of HIV acquisition [36].

In many African countries, young girls are encouraged or forced to marry older men [36, 38] which can make young girls vulnerable to HIV infection in several ways. The change from virginity to frequent unprotected sex increases their risk of HIV infection. Even if they were sexually active prior to marriage, marriage usually drastically increases the frequency of unprotected sex [39]. In Malawi, for example, consent to sex is assumed within a marriage and therefore marital rape does not exist [31, 36]. Many African countries condone polygamy [38], which means that an adolescent bride is likely to be a second or third wife [39]. Women who marry as adolescents are also more likely to receive less formal education and have less exposure to HIV prevention messages [38, 39]. A study in Durban, South Africa, demonstrated that if age of sexual debut was 15 or younger, the women were more likely to be HIV positive compared to women who had their sexual debut at the age of 21 or older (Hazard ratio of 1.97; 95% CI 1.07 to 3.63, p = 0.029) [40].

Socioeconomic vulnerabilities

In the last two decades, nearly all SSA countries have faced slowing economic growth which has influenced spending on social services [32]. This has further impoverished African populations, with increases in unemployment rates and the decrease in provision of social services, including education and health services. The deterioration of education, health, and other social services implies a loss of opportunities for HIV prevention [32], particularly in women.

Poverty is another driving force of HIV transmission in women [33]. Evidence from SSA, Asia and Latin America demonstrates that greater national-level income inequality is associated with higher HIV prevalence rates [41, 42]. Low economic status has been associated with earlier sexual experience, lower condom use at last sex act, having multiple sex partners, increased chances that the first sex act is non-consensual, and a greater likelihood of having had transactional sex or physically forced sex [15]. Many women resort to transactional sex to sustain their livelihoods and young girls are often coerced into sexual activities with older men to survive [32, 33]. Cash transfers among secondary school-aged young women in Malawi showed that such transfers can encourage women to reduce their risky sexual behaviour, and resulted in decreased teenage pregnancy, in addition to lower self-reported sexual activity [33]. In conditions of poverty, HIV risk becomes a low priority among people’s daily concerns. Young people growing up in poor conditions have little access to schooling and therefore few prospects for their future. Sex becomes a way to pass time due to a lack of recreational facilities [32].

Transactional sex (sex for money) is common in SSA. Many women engage in sex work which is defined as the provision of sexual services in exchange for money, goods, or other benefits [43]. Globally, female sex workers (FSWs) are at high risk of HIV infection and are 13.5 times more likely to be living with HIV than other women [2]. An estimated fifteen percent of HIV in the general female adult population is attributable to (unsafe) female sex work. The region with the highest attributable fraction is SSA with 98,000 HIV-related deaths [44] compared to an estimated 106,000 deaths worldwide which are a result of female sex work [45]. FSW is an important contributor to HIV transmission and the global HIV burden. Studies from South Africa and Kenya suggest sex workers engage in high risk behavior such as dry sex [46, 47] and anal sex (fetching a high price) which further increase their risk.

Behavioral vulnerabilities

It is well documented that behavioral change can lead to a decrease in HIV acquisition [48]. These include use of methods such as abstinence or delaying sexual debut, condoms, safe sex, monogamy, reduction in number of partners, voluntary counseling and testing etc. However abstinence is not an option for many women. A South African household survey showed that 7.8% of women aged 15–24 years had had sexual intercourse by the age of 14 [49]. An association has been shown between early age of sexual debut and ensuing risky sexual behaviors [50], such as having multiple partners and decreased contraceptive and condom use [51, 52]. Studies in Africa demonstrated a correlation between having sex at an early age and the HIV incidence [53, 54]. It is thought that the delay of sexual debut may have been one of the crucial changes in behavior which led to a decline in HIV infection in Uganda [40, 55, 56].

Concurrent partnerships are powerful transmitters of HIV in the community [57]. Concurrent sexual partnerships, with two or more partners, are common practices in Africa. Partner reduction and fidelity appear to be the main behavioral changes accountable for the decrease in Kenya’s HIV infection rates. This fall in HIV infection rates as a result of partner reduction has also been observed Zimbabwe, Côte d’Ivoire, Malawi and Ethiopia [58].

The vulnerability to HIV infection increases by engaging in unprotected anal sex by 13 fold compared to oral sex [59]. This is primarily due to the fragility of the rectal mucosa [29]. Although it is difficult to ascertain the percentage of women who participate in heterosexual anal sex in Africa, some studies and surveys have shown that between five [60] and twelve per cent [61] of women in the general community in South Africa report engaging in anal sex. However, this practice could be as high as forty per cent in female sex workers [59]. Effective HIV prevention measures exist and have been successfully targeted at key populations in many settings. It is however difficult to attract this high risk population group due to the different settings in which the FSWs conduct their business. Regular surveillance, prevention and treatment of HIV among FSWs would benefit this often neglected vulnerable group and the general population as a whole [2].

Alcohol abuse in much of Africa is characterized by irregular episodes of heavy drinking, frequently in the form of weekend bingeing [29]. These drinking patterns may have independent effects on sexual decision-making, and on condom-negotiation skills and correct condom use. Studies have demonstrated that women with heavy episodic drinking patterns are more prone to use condoms inconsistently and incorrectly, experience sexual violence; and acquire an STI, including HIV [29, 62].

Structural vulnerabilities

Many structural vulnerabilities place women at risk including gender inequality and gender based violence (GBV) [63], migration and health seeking related stigma [64]. Gender inequality is created and perpetuated in part by social norms that demand culturally appropriate roles and conduct for men and women [65]. Hierarchical gender roles such as notions of male sexual entitlement, the low social value and power of women, and ideas of manhood linked to the control of women result in lower levels of education among women; few public roles for women; the lack of family, social and legal support for women; and the lack of economic power for women [65, 66]. Institutionalized economic inequalities keep money, land, and other resources out of women’s reach, causing women to be financially dependent on men, more likely to practice transactional sex, less likely to be able to negotiate safe sex or condom use with a partner, and more at risk of violence [6, 16, 49, 65, 67].

Gender norms promote multiple concurrent sexual partners for men while women are expected to be monogamous and unquestioning of their partner’s behavior [49, 65]. However, recent data from several African studies show that many women are almost as likely as men to bring HIV into the partnership [68]. Sexual negotiation or refusal by a woman may result in suspicions of infidelity and result in intimate partner violence [49], which is often tolerated by these societies [65]. Women’s sexual subordination exposes them to elevated reproductive health risks including maternal mortality, unsafe abortion, coerced sex and rape, STIs and HIV [63].

Violence against women is a global problem and a well-recognized risk factor for HIV and other STIs [16, 63, 69]. In certain countries, over 50% of women report physical assault by an intimate partner, with one third to one half of physically abused women also reporting sexual coercion [65, 70]. Abusive men are more likely to have additional sexual partners unknown to their wives [69]. Experiences of sexual violence have also been associated with drug and alcohol use, early sexual debut, having multiple sexual partners, trading sex for money and drugs and less contraceptive use [66]. Women who live in poverty, younger women and uneducated women are especially affected by intimate partner violence [70–72]. A South African study found that 12% of new HIV infections in women were attributable to intimate partner violence [71], while GBV increased the risk of HIV infection by 55% in a Ugandan study [73].

Discrimination is often based on gender, race/ethnicity, sexual orientation, and HIV status [74]. Stigma and fear of status disclosure has been a large factor in individuals seeking HIV testing and subsequent treatment and care [33, 75]. Stigma can occur at different levels, including community, interpersonal, legislative and institutional (e.g. workplaces, schools and health facilities) levels [75]. Women often suffer the heaviest burden of HIV stigma and discrimination, as they are often expected to uphold the moral traditions of their societies; being HIV infected is considered evidence that they have failed in this regard [33, 74]. HIV positive women experience discrimination, stigma and other human rights violations within families and communities, by legal and social services, in health-care settings, and in their work environment. Health-care settings often refuse to provide information or provide the wrong information on HIV prevention and treatment, sexual and reproductive health, and family planning [33]. HIV positive women have also experienced the denial of services, lack of confidentiality, harsh and judgmental treatment, and lack of informed consent [33]. As a result of stigma, women are often reluctant to seek HIV testing and are not empowered to enact HIV prevention [74].

Migration trends in Africa vary in terms of their spatial, temporal and social characteristics. Many individuals migrate due to better job prospects or are forced to migrate due to political instability, war and famine [32]. Worldwide, mobile populations have higher HIV infection rates than non-mobile populations irrespective of HIV prevalence in the origin or destination location [74]. Mobility per se can encourage high risk sexual behavior and more than often migrants’ social networking creates opportunities for sexual networking. Women are becoming more mobile and are migrating for economic survival. However in many cases, lack of education often restricts them to unskilled jobs such as informal trading, commercial sex work and domestic work among others. A study conducted in South Africa among migrant and non-migrant women showed that migrant women were older, more likely to be married and had more than one sexual partner and were less likely to use condoms compared to non-migrant women. Migrant women were 1.6 times more likely to be infected with HIV than non-migrants [76].

Urbanization has also fuelled the rapid spread of HIV. In SSA, urban HIV prevalence is higher than rural populations [32]. Urbanization replaces the traditional village norms for an urban modern culture with fewer restrictions on sexual behaviour and marriage. Additionally, the loss of culture and social networks are related to social problems such as drug abuse, which fosters high-risk behaviour [32]. Political conflicts and war are commonplace in Africa and affects the risk of HIV/AIDS by interrupting normal social and risk networks, increasing poverty and social instability and weakening or destroying medical infrastructure [74]. Military conflict can cause changes in risk behavior, and war or civil strife often cause massive displacements of people [74], interrupt social cohesion and relationships, and encourages promiscuity and commercial sex; forced migration of people from low HIV prevalence areas to areas of high HIV prevalence [32]. Women who are temporarily displaced or in transit as a result of war or violence are more likely to report having received goods or money for sex [62].

HIV prevention strategies targeted at women

Given the magnitude of women’s vulnerability to HIV acquisition as described above, it is not surprising that there is a worldwide call to address the high HIV infection rates reported among women in SSA and elsewhere. Biomedical, behavioural and structural interventions have been investigated to reduce women’s vulnerability to HIV acquisition but also HIV incidence in general.

Biomedical interventions

Male condoms in general remain the most effective method of HIV prevention. However condom use or negotiation thereof is not always in the woman’s hands. Although female condoms are available, the use still requires negotiation. Thus female-initiated prevention methods have been investigated.

Microbicides are products with anti-HIV properties developed in numerous formulations for prevention of HIV. Microbicides were initially developed for vaginal application but are now also tested for rectal application [77]. Over the past decade several microbicides with varying actions such as membrane disruption activity (surfactants), prevention of virus attachment to target cells (polyanions), and buffering agents have been tested with limited success primarily due to lack of specificity against HIV and poor adherence to interventions by women [10, 11, 78–80]. More recently, products containing anti-retorviral (ARV) agents commonly used in HIV therapeutics were tested. A study of tenofovir based vaginal gel in South Africa showed a 39% (95% CI 6 to 60) reduction in HIV acquisition [81]. The greater the adherence to the product, the better was the efficacy in HIV prevention. Unfortunately the results were not replicated in a larger study conducted in several countries in SSA using the same gel [82]. The main reason for lack of efficacy was poor adherence. Further research is being undertaken to ascertain women's reluctance to use such interventions given the high risk of HIV acquisition in this region. A study with a long-acting vaginal ring with a drug called Dapivirine is currently ongoing (ASPIRE) [83]. Lessons from microbicide trials suggest the need to better understand social, cultural and traditional contexts of women in Africa while developing interventions for HIV prevention.

Success with research among HIV discordant couples showed a decrease in HIV acquisition when a negative partner in a dicordant partnership was provided with oral pre-exposure prophylaxis (PrEP). Partners taking oral tenofovir or tenofovir plus emtricitibine (Truvada) as prophlaxis had a reduced rate of HIV acquisition 67% (95% CI 44 to 81) and 75% (95% CI 55 to 87) respectively [84]. The higher the adherence the greater the efficacy. Unfortunately a study among women in east and southern Africa testing the same drug, Truvada, for HIV prevention did not show any efficacy in preventing HIV due to poor adherence to the study product [85].

Treatment with ARV for prevention (TasP) has been reported to be highly efficacious (96%) among both men and women in a discordant couple relationship where the positive partner was provided ARV treatment to reduce HIV transmission to the negative partner [86]. Thefore it appears that when both sexual partners have the knowledge of their HIV status and are targeted together for HIV prevention the intervention is likely to be aceptable and used.

Behavioral interventions

HIV counseling and testing is recognized as a critical component for all HIV prevention interventions. Testing provides the opportunity to identify people who are HIV positive and in need for treatment and care and can also identify people who are HIV negative and referred for HIV prevention and care. Regular HIV testing will be critical for prevention interventions using PrEP. HIV counseling and testing not only allows women, couples, and families to learn their HIV status and obtain personalized risk reduction counseling and further care appropriate to their status, but can also assist communities in addressing stigma and discrimination associated with HIV/ AIDS [87, 88].

Peer education interventions in developing countries have shown a significant increase in HIV knowledge and increased condom use. However, these programs have shown only a moderate improvement of behavioral outcomes, with no significant effect on biological outcomes [89]. Kenyan peer educators were able to increase protected sex among sex workers by providing condoms; facilitating HIV testing, treatment and care facilities and providing STI and HIV education [90]. In South Africa, the Stepping Stones program used participatory learning approaches to build communication skills, knowledge, and risk awareness. The program saw a 33% reduction in Herpes simplex virus-2 (HSV-2) incidence and improved several reported risk behaviors in men, such as transactional sex and intimate partner violence, although no decrease in HIV incidence was noted [91]. In developing countries, many mass media interventions have targeted changing HIV-related knowledge, behaviors and attitudes. At least half of these studies which reported outcomes such as condom use, reduction in risky sexual behavior, awareness of the modes of HIV transmission, HIV risk perception, ability to negotiate condom use and sexual abstinence showed a positive impact on the knowledge of HIV transmission and the decrease of risky sexual behavior [92]. Zambia has implemented several health communication programs focusing on HIV prevention and people who had been exposed to these radio and television programs were more likely to have ever used a condom [93]. In Nigeria, mass-media campaigns via television, radio and printed advertisements to increase the use of family planning, HIV/AIDS services and child survival demonstrated that people were twice as likely to know that HIV risk is reduced by condoms and one and a half times as likely to discuss HIV with their partner if they had high exposure to the program [94].

It is widely known that women who have an early sexual debut participate in risky sexual behavior, such as having multiple partners, higher STI incidence and decreased condom and contraceptive use [51, 52]. High level governmental encouragement of the delay of sexual debut could have contributed to the decline in Uganda’s HIV infection [55, 56].

Concurrent sexual partnerships are recognized as being significantly responsible for the transmission of STIs, particularly heterosexual HIV transmission. Evidence implies that concurrent partnerships can increase the size of an HIV epidemic, the speed at which it infects a population and its persistence within a population [57]. Uganda adopted a “Zero Grazing” campaign in the 1980’s, where having concurrent partners was discouraged. This campaign showed a 50% reduction in the number of people reporting casual and multiple partners between 1989 and 1995 [58, 95]. It is also believed that partner reduction and fidelity are the main behavioral changes responsible for the decline in Kenya’s HIV infection rates. Similar behavior changes have been reported in Cote d’Ivoire, Zimbabwe, Ethiopia and Malawi which may be responsible for their decrease in HIV prevalence [58].

Structural interventions

Structural interventions attempt to change the social norms that worsen HIV vulnerability. The South African IMAGE project sought to decrease gender based HIV vulnerabilities such as sexual violence, women’s lack of knowledge about HIV and its transmission and women’s economic dependency on men. The study partnered with a local microfinance institution to permit women to participate in microenterprises, while providing them with HIV education and a forum to discuss action against gender-based violence. These women improved their household wellbeing and empowerment, in addition to the significant reduction in gender-based violence [64].

Microfinance programs attempt to ease poverty by offering access to credit, savings or business skills. In South Africa, a study using an integrated curriculum of gender equity, anti-violence work and HIV/AIDS education together with an existing microfinance program demonstrated higher levels of HIV-related communication by women in addition to a 55% reduction in domestic violence. Women in this study were less likely to have had unprotected sex at their last sex act and more likely to have accessed HIV Counselling and Testing [96]. In Malawi, girls receiving cash transfers had a lower prevalence of HIV and HSV-2 than those who were not because of less sexual activity, delayed sexual debut, having younger and fewer partners and decreased transactional sex [88]. A Tanzanian trial suggested a 25% lower incidence of STIs in both women and men receiving monetary incentives [88]. A Kenyan project provided HIV and safe sex education, small business management training and startup funds to women engaged in sex work. The project showed an increased sense of pride and wellbeing, a decrease in the number of sexual partners and an increase in condom use [97]. In response to the increase in HIV incidence caused by migration, a project in Tanzania distributed and promoted condom use, raised HIV awareness, encouraged reduction in the overall number of sexual partners and encouraged peer-based STI/HIV education among truck drivers. The number of condoms distributed increased by 100 000 and HIV awareness among truck drivers increased [97].

Education reduces risk of HIV infection, boosts self-esteem, and provides alternatives for earning a livelihood [50]. Communities and individuals with greater school education may be at decreased risk of HIV infection due to the adoption of protective lifestyles and behaviour [98]. People with little or no education have limited access to safe-sex information. For example, condom use is associated with higher education levels [32]. Keeping young girls in school has also showed a reduction in their risk of contracting HIV. Studies show that the expansion of primary and secondary schooling for girls in southern Africa will help reduce their vulnerability to HIV [99].

Policy structural factors play a major role in HIV transmission and Uganda is the best example of successful policy changes and the link to decreased HIV transmission. The Ugandan government committed itself to extensive training of trainers, mass media, health education campaigns, countrywide messaging and district mobilization causing changes in sexual behavior, social norms and HIV prevalence [100]. Research in Uganda has demonstrated the connection between a country’s government recognition of the importance of HIV and the subsequent development of better government interventions to HIV [97].

Conclusion

Convincing evidence from biological, epidemiological, sociocultural and structural challenges identify women’s vulnerability to HIV infection in SSA. The evidence shows that women in SSA are at higher risk of HIV infection compared to their male counterparts. Through gender power dynamics, women are embedded in relationships which increase their risk even more. Other than personal behavior, several other issues such as structural influences are identified which are beyond women's control and are likely to affect women globally. Given the unacceptably high prevalence and incidence rates of HIV in young women in southern Africa, every effort to mitigate this risk is urgently needed with a combination of biomedical, behavioural and structural interventions targeted not only to the women but their sexual partner(s) as well. Recent advances in the HIV prevention field need to be stepped up by implementing appropriate HIV prevention packages taking into consideration the cultural environment, biological, socio-economic and structural risks facing women.

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Acknowledgements

Dr. Duduzile Ndwandwe for her assistance in preparing this manuscript.

Dr. Renee Street for her review of the final manuscript.

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Affiliations

  1. HIV Prevention Research Unit, South African Medical Research Council, 123 Jan Hofmeyr Road, Westville, Durban, 3629, South Africa

    Gita Ramjee & Brodie Daniels

  2. London School of Hygiene and Tropical Medicines, Keppel Street, London, WC1E, 7HT, UK

    Gita Ramjee

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  1. Gita Ramjee
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Correspondence to Gita Ramjee.

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Both GR and BD contributed to the drafting of the manuscript. Both authors read and approved the final manuscript.

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Ramjee, G., Daniels, B. Women and HIV in Sub-Saharan Africa. AIDS Res Ther 10, 30 (2013). https://doi.org/10.1186/1742-6405-10-30

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Keywords

  • HIV incidence
  • Sub-Saharan Africa
  • Adherence
  • Prevention

AIDS Research and Therapy

ISSN: 1742-6405

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