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Mota-Miranda AC, Araújo SP, Dias JP, Colin DD, Kashima S, Covas DT, Tavares-Neto J, Galvão-Castro B, Alcantara LCJ. HTLV-1 infection in blood donors from the Western Brazilian Amazon region: Seroprevalence and molecular study of viral isolates. J Med Virol 2008; 80:1966-71. [DOI: 10.1002/jmv.21300] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Rego FFDA, Alcantara LCJ, Neto JPM, Miranda ACAM, Pereira ODS, Gonçalves MDS, Galvão-Castro B. HTLV type 1 molecular study in Brazilian villages with African characteristics giving support to the post-Columbian introduction hypothesis. AIDS Res Hum Retroviruses 2008; 24:673-7. [PMID: 18462080 DOI: 10.1089/aid.2007.0290] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We performed an HTLV epidemiological study of 986 individuals from 17 villages from the same state of Salvador, the city with the highest HTLV-1 prevalence in Brazil. The HTLV-1 prevalence was 3.85%, 1.56%, and 1.23% in three villages. Phylogenetic analysis of the LTR region demonstrated that all positive samples analyzed belonged to the Transcontinental subgroup of the HTLV-1 Cosmopolitan subtype. Three of the new HTLV-1 sequences formed a well-supported clade within one of the Latin American clusters that contain a South African sequence. This Latin American cluster that segregated from the same ancestor as the other clade contained a Central African sequence. This ancestral relationship could support our previous report that suggests that this subgroup was first introduced into South Africa as a result of the migration of the Bantu population from Central Africa to Southern Africa over the past 3000 years, and afterward to Brazil during the slave trade between the sixteenth and nineteenth centuries.
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Affiliation(s)
- Filipe Ferreira de Almeida Rego
- Bahia School of Medicine and Public Health/Bahia Foundation for Development of Science, Salvador, Bahia, Brazil
- Advanced Public Health Laboratory, Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Luiz Carlos Junior Alcantara
- Bahia School of Medicine and Public Health/Bahia Foundation for Development of Science, Salvador, Bahia, Brazil
- Advanced Public Health Laboratory, Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Jose Pereira Moura Neto
- Pathology and Molecular Biology Laboratory, Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | | | - Osmario de Souza Pereira
- Pathology and Molecular Biology Laboratory, Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Marilda de Souza Gonçalves
- Pathology and Molecular Biology Laboratory, Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Bernardo Galvão-Castro
- Bahia School of Medicine and Public Health/Bahia Foundation for Development of Science, Salvador, Bahia, Brazil
- Advanced Public Health Laboratory, Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
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