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| Martínez,Ana M.B.; Hora,Vanusa P. da; Santos,Adriana L. dos; Mendoza-Sassi,Raul; Von Groll,Andréa; Soares,Esmeralda A.J.M.; D'Ávila,Nildo; Silveira,Jussara; Leal,Renata G.; Tanuri,Amilcar; Soares,Marcelo A.. |
| Different human immunodeficiency virus type 1 (HIV-1) subtypes may have distinct biological, immunological and pathogenic properties. Efficiency of mother-to-child transmission (MTCT) may be among those properties, but few and controversial results have been described so far. In this study, 102 children born from HIV-1-infected mothers between 1998 and 2004 in the city of Rio Grande, Brazil were analyzed for potential risk factors associated with MTCT. That geographic region is characterized by a high proportion of subtype C-infected subjects, and it allowed comparison between subtypes B and C and their influence on MTCT. The analysis also included clinical, obstetric and immunological parameters. Multivariate regression analyses were conducted to evaluate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV; MTCT; Vertical transmission; Subtype C; Molecular epidemiology. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000100011 |
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| Machado,Elizabeth S.; Lambert,John S.; Afonso,Adriana O.; Cunha,Silvia M.; Oliveira,Ricardo H.; Tanuri,Amilcar; Sill,Anne M.; Soares,Marcelo A.. |
| Although mother-to-child HIV transmission prevention has slowed down pediatric HIV infection in developed countries, large numbers of infants still become infected in developing nations. Data on pediatric HIV infection is however largely scarce. In this study, we have overviewed clinical, laboratory and genotypic data from a large cohort of HIV-infected infants regularly followed at two pediatric HIV outpatient clinics in Rio de Janeiro, Brazil. Children on antiretroviral therapy, as well as drug-naïve, newly diagnosed infants were analyzed. Prevalence of drug resistance mutations, as well as immunological and virological responses to therapy were evaluated. Additionally, HIV-1 subtype frequencies and their distribution over the course of the epidemic were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV-1; Pediatric; Drug resistance; Clinical; Genotyping; Subtype. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000400008 |
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