HIV-1 epidemiology and circulating subtypes in the countryside of South Brazil
Rev. Soc. Bras. Med. Trop
;
48(3): 249-257, May-Jun/2015. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-749868
ABSTRACT
INTRODUCTION: Human immunodeficiency virus type 1 (HIV-1) has spread worldwide, with several subtypes and circulating recombinant forms. Brazil has an incidence of 20.5 HIV-1/acquired immunodeficiency syndrome (AIDS) patients per 100,000 inhabitants; however, the Southernmost State of Rio Grande do Sul (RS) has more than twice the number of HIV-1-infected people (41.3/100,000 inhabitants) and a different pattern of subtype frequencies, as previously reported in studies conducted in the capital (Porto Alegre) and its metropolitan region. This study examined HIV-1/AIDS epidemiological and molecular aspects in the countryside of Rio Grande do Sul. METHODS: Socio-demographic, clinical and risk behavioral characteristics were obtained from HIV-1-positive adult patients using a structured questionnaire. HIV-1 subtypes were determined by nested-polymerase chain reaction (PCR) and sequencing of the pol and env genes. RESULTS: The study sample included 149 (55% women) patients with a mean age of 41.8 ± 11.9 years. Most (73.8%) patients had a low education level and reported heterosexual practices as the most (91.9%) probable transmission route. HIV-1 subtypes were detected in 26 patients: 18 (69.2%) infected with subtype C, six (23.1%) infected with subtype B and two (7.7%) infected with BC recombinant forms. CONCLUSIONS: These data highlight the increasing number of HIV-1 subtype C infections in the countryside of South Brazil. .
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Infecções por HIV
/
HIV-1
Tipo de estudo:
Estudo de etiologia
/
Estudo observacional
/
Estudo de prevalência
/
Pesquisa qualitativa
/
Fatores de risco
/
Estudo de rastreamento
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Rev. Soc. Bras. Med. Trop
Assunto da revista:
Medicina Tropical
Ano de publicação:
2015
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Luterana do Brasil/BR
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