| congenital chagas' disease: diagnostic and clinical aspects. | the diagnostic and clinical aspects of congenital chagas' disease were studied in 71 children in buenos aires. the children's ages ranged from 2 days to 10 years. in infants < 6 months old, the disease was diagnosed by detection of trypanosoma cruzi in the blood; the microhematocrit test was positive in 38 (97.4%) of 39 cases. this test was the fastest and most reliable diagnostic method in this group, whereas two conventional serological methods were useful in children > or = 6 months of age. f ... | 1995 | 8527542 |
| hiv-1 and hepatitis b virus infections in adolescents lodged in security institutes of buenos aires. | the goal of this study was to determine the prevalence of human immunodeficiency virus type 1 (hiv-1) and hepatitis b virus (hbv) infections in street youth lodged in security institutes, from february 1992 to march 1995, to correlate these infections with nontherapeutic drug use, and to compare these results with a previous study done in a similar population. a total of 1460 white adolescents, 276 females and 1184 males, were enrolled (mean age 16.6 years). prevalence of hiv-1 was 4.58% and of ... | 1996 | 11361493 |
| bloodborne and sexually transmitted infections in drug users in a hospital in buenos aires, argentina. | injection drug users (idus) constitute a population highly vulnerable to infections transmitted by blood or sexual relations. social problems and marginalization hinder idus from accessing the health care system. the rates of prevalence of human immunodeficiency virus, hepatitis c virus, and hepatitis b virus infections in idus are high, and they have become of great concern for the argentinean health care system. an integral frame oriented to identifying the extent of the different individual r ... | 2003 | 14648444 |
| 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 |
| 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 |
| phenotypic and genotypic identification of candida dubliniensis from subgingival sites in immunocompetent subjects in argentina. | it is generally recognized that candida dubliniensis is commonly found in immunocompromised patients, such as those with advanced human immunodeficiency virus infection, at sites of periodontal disease. since there are no data available for argentina, the aim of this study was to determine the prevalence of and to identify c. dubliniensis in periodontal pockets from immunocompetent subjects living in buenos aires, argentina, through a comparison of phenotypic and molecular assays. | 2008 | 18954358 |
| sexual behavior and hbv infection among noninjecting cocaine users (nicus). | the aim is to estimate hbv prevalence and the associated risks among noninjecting cocaine users (nicus). in 2002-2003, a total of 824 nicus from buenos aires (argentina) and montevideo (uruguay) were interviewed using a structured questionnaire. serologic tests were carried out for human immunodeficiency virus (hiv), hepatitis b (hbv), syphilis, and others. the population was divided into two serologic groups: hbv-infected and seronegative group. univariate and binary logistic model were develop ... | 2010 | 20438315 |