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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 109, No. 1, 2014, pp. 118-121
Bioline Code: oc14016
Full paper language: English
Document type: Short Communication
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 109, No. 1, 2014, pp. 118-121

 en Prevalence and genetic characterisation of HTLV-1 and 2 dual infections in patients with pulmonary tuberculosis in Central-West Brazil
Kozlowski, Aline Garcia; dos Santos Carneiro, Megmar Aparecida; de Matos, Márcia Alves Dias; Teles, Sheila Araújo; Filho, João Alves Araújo; Otsuki, Koko; Vicente, Ana Carolina Paulo & Martins, Regina Maria Bringel


Human T-cell lymphotropic virus (HTLV) may impact the clinical course of tuberculosis (TB). Both infections are highly endemic in Brazil. The aim of this study was to assess the prevalence of HTLV-1/2 in TB patients in Central-West Brazil and to perform a genetic characterisation of the respective isolates. Of the 402 patients, six (1.49%) were positive for anti-HTLV and five (1.24%; 95% confidence interval: 0.46-3.05) were infected with HTLV-1/2. Genetic characterisation demonstrated that the four HTLV-1 isolates belonged to the Transcontinental subgroup A of the Cosmopolitan subtype a and that the HTLV-2 isolate belonged to subtype a (HTLV-2a/c). The prevalence of HTLV infection observed in this study is higher than that observed in local blood donors and the HTLV-1 and 2 subtypes identified are consistent with those circulating in Brazil.

HTLV-1; HTLV-2; tuberculosis; prevalence

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