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Free Content HIV and Schistosoma haematobium prevalences correlate in sub‐Saharan Africa

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Abstract:

Abstract
Objective

Epidemiological studies have observed that genital schistosomiasis increases the risk of HIV infection in Africa. We analysed the correlation between Schistosoma haematobium prevalence and HIV prevalence across sub‐Saharan African countries.
Design

Regression analysis of prevalence of HIV and S. haematobium across sub‐Saharan African countries.
Methods

Using compiled country‐level S. haematobium prevalence, HIV prevalence and other demographic and economic data from published sources, we applied univariate and multivariate regression models to assess the correlations between S. haematobium prevalence and HIV prevalence while controlling for risk factors associated with each infection.
Results

In 43 sub‐Saharan African countries, the mean prevalence of S. haematobium was 22.4% [standard deviation (SD): 9.8%] and for HIV was 6.21% (SD: 5.71%). In multivariate analysis, adjusted for prevalence of male circumcision, years since a country's first HIV/AIDS diagnosis, geographical region and immunization coverage, each S. haematobium infection per 100 individuals was associated with a 2.9% (95% CI: 0.2–5.8%) relative increase in HIV prevalence. Shaematobium was not associated with Schistosoma mansoni, HSV‐2, hepatitis C, malaria or syphilis.
Conclusions

Schistosoma haematobium prevalence was associated with HIV prevalence in sub‐Saharan Africa. Controlling S. haematobium may be an effective means of reducing HIV transmission in sub‐Saharan Africa.

Language: French

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/tmi.12165

Publication date: October 1, 2013

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