a theoretical model of the evolution of virulence in sexually transmitted hiv/aids modelo teórico da evolucão da virulência do hiv/aids transmitido sexualmente

Clicks: 252
ID: 152515
1999
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Abstract
INTRODUCTION: The evolution of virulence in host-parasite relationships has been the subject of several publications. In the case of HIV virulence, some authors suggest that the evolution of HIV virulence correlates with the rate of acquisition of new sexual partners. In contrast some other authors argue that the level of HIV virulence is independent of the sexual activity of the host population. METHODS: Provide a mathematical model for the study of the potential influence of human sexual behaviour on the evolution of virulence of HIV is provided. RESULTS: The results indicated that, when the probability of acquisition of infection is a function both of the sexual activity and of the virulence level of HIV strains, the evolution of HIV virulence correlates positively with the rate of acquisition of new sexual partners. CONCLUSION: It is concluded that in the case of a host population with a low (high) rate of exchange of sexual partners the evolution of HIV virulence is such that the less (more) virulent strain prevails.
INTRODUÇÃO: A evolução da virulência na relação hospedeiro-parasita tem sido objeto de várias publicações. No caso do HIV, alguns autores sugerem que a evolução da virulência do HIV correlaciona-se com a taxa de aquisição de novos parceiros sexuais. Por outro lado, outros autores argumentam que o nível de virulência do HIV é independente da atividade sexual da população hospedeira. MÉTODOS: Propõe-se um modelo matemático para estudar a influência potencial que o comportamento sexual humano possa ter na evolução da virulência do HIV. RESULTADOS: Os resultados indicam que, quando a probabilidade de aquisição da infecção pelo HIV é uma função tanto da atividade sexual da população humana quanto da virulência das cepas de HIV, a evolução da virulência do HIV correlaciona-se positivamente com a taxa de aquisição de novos parceiros sexuais. CONCLUSÃO: Concluiu-se que no caso de uma população hospedeira com uma baixa (alta) taxa de troca de parceiros sexuais a evolução da virulência do HIV é tal que a cepa menos (mais) virulenta predomina.
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coutinho1999revistaa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;FAB Coutinho;E Massad;RX Menezes;MN Burattini
Journal proceedings - 2016 3rd international conference on information technology, computer, and electrical engineering, icitacee 2016
Year 1999
DOI
10.1590/S0034-89101999000400002
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89101999000400002
Keywords
virulence models

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