Health Essay

627 Words Mar 23rd, 2013 3 Pages
Epidemiology of HIV/AIDS in Mauritius

Paper Presenter: Satish K Ramchurn, Department of Physics, Faculty of Science, University of Mauritius

Author(s):
• Faatimah N Angnoo, Department of Physics, Faculty of Science, University of Mauritius
• Smita SD Goorah, Department of Medicine, Faculty of Science, University of Mauritius
• Satish K Ramchurn, Department of Physics, Faculty of Science, University of Mauritius
Introduction
Mauritius is currently experiencing a concentrated HIV/AIDS epidemic. The epidemic is said to be concentrated because the prevalence in the general population is low (about 0.2%) whereas the prevalence in the high-risk groups of intravenous drug users (IDUs), commercial sex workers (CSWs), and prison
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The susceptible compartment was augmented parametrically. The groups interacted through a sexual network and through an IDU network. The interactions were described by a set of differential equations and these were computationally integrated to simulate the time-evolution of HIV/AIDS in the population.

Results
It was found that there has been a shift of the HIV mode of transmission from the heterosexual to the IDU mode with the IDU mode accounting for 92%, 85.6%, and 80.6% of reported new infected cases in 2005, 2006, and 2007 respectively. It was also found that the prevalence rates peaked in the 25-29 year old age group in the male population and the 20-25 year old age group in the female population. The prevalence was also found to have a geographical structure with the districts of Port Louis, Plaine Wilhems and Pamplemousses being most affected.

Computations showed that the number of needles shared by an IDU, the fraction of needles contaminated with HIV, and the number of bed partners of an individual are three important factors in the development of an HIV/AIDS epidemic in a society interacting through a sexual and IDU network.

Discussion
Mauritius is experiencing an IDU-driven HIV/AIDS epidemic concentrated in its high-risk groups (commercial sex workers, intravenous drug users and prison inmates). There is a high risk that the epidemic will extend to the 14-20 year old age group unless

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