Abstract
Background: In prior research, Africans who knew about blood-borne risks were modestly less likely to be HIV-infected than those who were not aware of such risks. Objectives/Methods: I examined the association between knowledge of specific HIV transmission modes and prevalent HIV infection with data from the 2009 Mozambique AIDS Indicator Survey. Results: Respondents displayed high awareness of blood exposures and vaginal sex as modes of HIV transmission. However, only about half of respondents were aware of anal sex as a way HIV can be transmitted. After adjustments for demographics and sexual behaviors, respondents who knew that HIV could spread by contact with infected blood or by sharing injection needles or razor blades were less likely to be infected than those who did not know about these risks. Respondents who knew about sexual risks were as, or more, likely to be HIV infected as those who did not know about sexual risks. Also, children of HIV-uninfected mothers were less likely to be infected if their mothers were aware of blood-borne HIV risks than if their mothers were unaware. Conclusion: HIV education campaigns in Mozambique and elsewhere in sub-Saharan Africa should include a focus on risks from blood exposures and anal sex.
Highlights
A wide variety of blood exposures is independently associated with incident and prevalent HIV infection in sub-Saharan Africa[1,2,3,4,5,6,7,8,9]
Before adjustments for demographics and sexual behavior variables, respondents who believed that HIV spread through vaginal or anal sex were more likely to be infected than those who did not believe HIV spread in that way (Table 1)
Adult Mozambicans displayed very high awareness of some blood exposures and vaginal sex as modes of HIV transmission when directly asked about such contact in the 2009 Mozambique AIDS Indicator Survey
Summary
A wide variety of blood exposures is independently associated with incident and prevalent HIV infection in sub-Saharan Africa[1,2,3,4,5,6,7,8,9]. Knowledge of blood-borne HIV risks varies markedly across the region, with awareness much higher in West, central and East Africa than in Southern Africa[18]. HIV education campaigns in West, central and East Africa have included a focus on blood-borne risks, campaigns in Southern Africa have not, likely leading to deficits in Southern Africans’ knowledge. Persons who know about blood-borne risks are modestly less likely to be HIV-infected than those who are not aware of such risks, independent of demographics and sexual behaviors[18]. Conclusion: HIV education campaigns in Mozambique and elsewhere in sub-Saharan Africa should include a focus on risks from blood exposures and anal sex
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