| molecular epidemiology of human t-lymphotropic virus type ii infection in amerindian and urban populations of the amazon region of brazil. | molecular characterization of human t-cell lymphotropic virus ii (htlv-ii) isolates in north america and europe has shown the existence of two principal subtypes of the virus, htlv-iia and htlv-iib. subsequent studies on htlv-ii isolates from brazil have suggested the existence of a unique variant phylogenetically related to htlv-iia but phenotypically similar to htlv-iib with respect to the transactivatory protein, tax. this variant has been designated htlv-iic. to better clarify the variabilit ... | 2002 | 12495078 |
| molecular characterization of human t-cell lymphotropic virus coinfecting human immunodeficiency virus 1 infected patients in the amazon region of brazil. | the present work evaluated the epidemiology of human immunodeficiency virus 1/human t-cell lymphotropic virus (hiv-1/htlv) coinfection in patients living in belém (state of pará) and macapá (state of amapá), two cities located in the amazon region of brazil. a total of 169 blood samples were collected. the sera were tested by enzyme-linked immunosorbent assay to determine the presence of antibodies anti-htlv-1/2. confirmation of infection and discrimination of htlv types and subtypes was perform ... | 2005 | 16113884 |
| molecular epidemiology of hiv type 1 in northern brazil: identification of subtypes c and d and the introduction of crf02_ag in the amazon region of brazil. | the molecular epidemiology of hiv-1 strains circulating in belem-pa and macapa-ap, in the northern region of brazil, is described using sequences of the c2v3 segment of the env and the pro gene of hiv-1 from patients of the reference unit for special infectious and parasitary diseases (ure-dipe) in belem-pa and the central laboratory (lacen) in macapa-ap. subtype b was the most frequently found in relation to pro (88.3%) in belem and in macapa (97.1%) and env (88.3% in belem and 100% in macapa). ... | 2009 | 19795985 |