Estudo soroepidemiológico da infecção pelo Vírus Linfotrópico de Células T Humanas - 1 em mulheres profissionais do sexo em Goiânia - Goiás
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2012-05-02
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Universidade Federal de Goiás
Resumo
Lymphotropic virus human T cells 1 (HTLV-1) is a retrovirus associated with the development of diseases such as T cell leukemia in adults (ATL) and tropical spastic paraparesis (TSP) or HTLV-associated myelopathy (HAM/TSP). Transmission occurs by sexual routes, parenteral and vertical. Female sex workers (FSW) are a population vulnerable to parenteral and sexually transmitted infections since they have often risky behaviors including drug use and unprotected sex. The study aimed to investigate the seroepidemiological profile of HTLV-1 infection among a population of female sex workers in Goiânia city, using the Respondent driven Sampling methodology. A total of 402 FSWs were interviewed about demographic and risk characteristics for HTLV infection, between May 2009 and June 2010. Blood samples were collected from all females and screened by ELISA for detection of antibodies to HTLV-1/2. Positive samples were retested for confirmation by western blot and PCR, and characterized by sequencing and phylogenetic analyses. The mean age was 27.5 years (SD: 9.1 years). Most of FSWs (67.1%) were single, 47.3% had 10 a 12 years of formal education. One third of female sex workers reported illicit drug (34.1%), thought only (2.7%) used injection illicit drugs, 51.9% had more than seven sexual partners in the last week and 36.3% did not use condom with their steady sexual partners. Some women reported to recruit their clients in more than one type of venue, being nightclubs (41%), bars (27.7%) and streets (25%) predominant. Of the 402 samples screened by ELISA, three were positive and submitted to detection of DNA-HTLV for the tax, LTR and env regions. Only one was positive for HTLV-1, resulting in a prevalence of 0.2%. (CI 95%: 0.0-1.6). The virus isolate was classified as Transcontinental subgroup of the HTLV-1 Cosmopolitan subtype. These findings show a low endemicity for HTLV-1 infection in female sex workers in Goiânia-GO, however epidemiological studies of this infection are important to reinforce the need for prevention strategies based on the disclosure of the modes of transmission and status tracking serological the infected.
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SOUZA, Dulce Helena Rebouças de. Estudo soroepidemiológico da infecção pelo Vírus Linfotrópico de Células T Humanas - 1 em mulheres profissionais do sexo em Goiânia - Goiás. 2012. 98 f. Dissertação (Mestrado em Medicina Tropical e Saúde Publica) - Universidade Federal de Goiás, Goiânia, 2012.