Abstract
HIV, the cause of AIDS in humans, is characterized by great genetic heterogeneity. In particular, HIV-1 group M subtypes are responsible for most of the infections worldwide. We investigate the demographic history of HIV-1B and HIV-1C subtypes in South Africa and Brazil using both a parametric and a nonparametric approach based on coalescent theory. Our results show that although both subtypes are spreading exponentially in Brazil, the HIV-1C growth rate is about twice that of Brazilian HIV-1B or South African HIV-1C, providing evidence, for the first time, of a different epidemic potential between two HIV-1 subtypes. The present study not only may have important consequences for devising future vaccination and therapeutic strategies, but also offers additional evidence that skyline plots are indeed a simple and powerful tool for monitoring and predicting the behavior of viral epidemics.
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Acknowledgment
This work was supported by the Flemish Funds voor Wetenschappelijk Onderzoek (FWO Grants G.0288.01 and KAN2002 1.5.193.02, Postdoctoral Onderzoeker Contract 530).
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Salemi, M., de Oliveira, T., Soares, M.A. et al. Different Epidemic Potentials of the HIV-1B and C Subtypes. J Mol Evol 60, 598–605 (2005). https://doi.org/10.1007/s00239-004-0206-5
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DOI: https://doi.org/10.1007/s00239-004-0206-5