| overt and latent hiv 1 and htlv-i infection in cohorts of at high risk individuals in argentina. | we conducted a survey using serology and polymerase chain reaction assays to detect hiv 1 and/or htlv-i antibodies and viral dna, respectively, in 113 intravenous drug abusers and in 62 sexually active high risk individuals attending two drug addict centres and a centre for venereal diseases in buenos aires, argentina. at the time of the survey 137 of these subjects were known to be hiv 1 seropositive but none of them was symptomatic. serological tests for htlv-i were found to be positive in 38 ... | 1991 | 1779979 |
| seroprevalence of htlv-i/htlv-ii in blood donors in buenos aires (argentina) | | 1994 | 7701816 |
| evaluation of htlv-i/ii infection in blood donors in buenos aires. | htlv-i and htlv-ii are two related retroviruses that are transmitted by sexual contact, breast feeding, blood transfusion and needle sharing. in this study the prevalence of htlv-i and htlv-ii was evaluated in voluntary blood donors as a measure of the infection in the general population. samples were tested by a gelatine particle agglutination test and repeatedly reactive samples were confirmed by western blot tests (wbt), enriched with recombinant rgp21, rgp461 y rgp4611 proteins, which differ ... | 1995 | 8728867 |
| [determination of anti-htlv-i/ii antibodies: experience in 28,897 blood donations in buenos aires]. | the first human retrovirus, htlv-i, was isolated in 1980; htlv-ii was described later. the former is endemic in southwestern japan, the caribbean and equatorial africa; whereas the latter prevails in intravenous drug addicts, being also endemic in american indian populations. both viruses are either sexually transmitted, from mother to child mainly by breast-feeding, by blood transfusion or by sharing contaminated needles. with regard to transmission, since they are intracellular viruses, it occ ... | 1995 | 8850226 |
| high seroprevalence of bloodborne viruses among street-recruited injection drug users from buenos aires, argentina. | injection drug use is the main mechanism of human immunodeficiency virus (hiv) transmission in argentina (40% of reported aids cases in argentina). this study was conducted among street-recruited injection drug users (idus) from buenos aires, with the aim of estimating seroprevalence and coinfection of hiv, hepatitis b virus (hbv), hepatitis c virus (hcv), and human t-lymphotropic viruses (htlvs). a total of 174 volunteers participated in this study; 137 were men (78.7% of volunteers). the avera ... | 2003 | 14648445 |
| human immunodeficiency virus type 1 and other viral co-infections among young heterosexual men and women in argentina. | infections with hepatitis c virus, (hcv), hepatitis b virus (hbv), and human t lymphotropic type i/ii (htlv-i/ii) virus are commonly found in patients infected with human immunodeficiency virus type 1 (hiv-1). we conducted a seroepidemiologic study among 174 hiv-positive heterosexuals in buenos aires, argentina in 1999. evidence of exposure to hcv, hbv, and htlv-i/ii was found in 32%, 17%, and 5%, respectively. a higher prevalence of hbv infection was observed among males (33%) compared with fem ... | 2004 | 15306703 |
| epidemiology of human immunodeficiency virus, viral hepatitis (b and c), treponema pallidum, and human t-cell lymphotropic i/ii virus among men who have sex with men in buenos aires, argentina. | human immunodeficiency virus (hiv) and sexually transmitted infections (sti) are prevalent among men who have sex with men (msm). | 2006 | 16540880 |
| htlv-1/2 among high-risk groups in argentina: molecular diagnosis and prevalence of different sexual transmitted infections. | the objectives of this study were to estimate the prevalence and characterize the epidemiologic patterns of htlv-1/2 infections and co-infections with hiv, hbv (hepatitis b), hcv (hepatitis c), and treponema pallidum in five different high-risk groups, including injecting drug users (idus), female sex workers (fsws), men who have sex with men (msm), patients with tuberculosis (tb), and patients attending clinics for sexually transmitted infections (stis) in buenos aires, argentina. the htlv-1/2 ... | 2007 | 17935172 |
| sexual practices, drug use behaviors, and prevalence of hiv, syphilis, hepatitis b and c, and htlv-1/2 in immigrant and non-immigrant female sex workers in argentina. | to study socio-demographics, sexual practices, drug use behaviors, and prevalences of hiv, syphilis, hepatitis b and c, htlv-1 and htlv-2 in immigrant (foreigner) and non-immigrant (local/native) female sex workers (fsw). | 2009 | 18175218 |
| human immunodeficiency virus and tuberculosis in argentina: prevalence, genotypes and risk factors. | the objective of this study was to determine the prevalence and genetic variability of human immunodeficiency virus type 1 (hiv-1) and other sexually transmitted infections (stis) among 205 patients with clinical diagnosis of tuberculosis (tb) in buenos aires in 2001. infections with hepatitis b virus (hbv), hiv-1, hepatitis c virus (hcv), treponema pallidum and human t-cell lymphotropic virus types i/ii were diagnosed in 37/187 (19.8 %), 35/205 (17.1 %), 22/187 (11.8 %), 13/187 (7.0 %) and 4/18 ... | 2008 | 18201985 |
| divergent strains of human t-lymphotropic virus type 1 (htlv-1) within the cosmopolitan subtype in argentina. | htlv-1 cosmopolitan subtype transcontinental subgroup a has been described among aboriginal communities from the northwest endemic area of argentina. moreover, transcontinental subgroup a and the japanese subgroup b were reported among blood donors from the nonendemic central region of the country. we carried out the first htlv-1 phylogenetic study in individuals residing in buenos aires capital city. phylogenetic analysis performed on the ltr region showed that all 44 new strains clustered with ... | 2008 | 18834325 |
| predominance of human lymphotropic t-cell virus type 2 (htlv-2) subtype b in urban populations of argentina. | htlv-2b infection has been described among aborigines from northern argentina, while htlv-2a has been described in an injecting drug user (idu) from a central region, similar to the situation in spain, usa and brazil. in this study, 22 of the 26 strains analyzed from blood donors and hiv-1+ individuals were htlv-2b (84.6%) clustering with amerindian references, while 4 hiv-1+ (15.4%) were htlv-2a. htlv-2a sequences were closely related to brazilian references in contrast to the previous argentin ... | 2011 | 22115426 |