| 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 |
| identification of hepatitis c virus subtype 2c by sequencing analysis in patients from córdoba, argentina. | in argentina, most information on hepatitis c virus (hcv) genotype distribution comes from studies carried out in buenos aires (east province). in order to identify hcv subtypes in central argentina, nucleotide sequencing of core region was performed in samples from 36 patients living in córdoba, the second most populated province of argentina. the sequence analysis identified subtype 2c as the most prevalent (50%), followed by subtype 1b (33%) and to a lesser extent by subtypes 1a (11%), 3a (3% ... | 2007 | 18209940 |
| multiple infections and associated risk factors among non-injecting cocaine users in argentina. | the aim of this study was to estimate the seroprevalence rates of human immunodeficiency virus (hiv), hepatitis b virus (hbv, core antibody), hepatitis c virus (hcv), and syphilis infections and analyze associated risk factors among 504 non-injecting cocaine users (nicu) in buenos aires, argentina. participants were interviewed in face-to-face sessions through a short structured questionnaire. using venipuncture, 10 ml of blood was collected. seroprevalence rates were: hiv (6.3%), hbv (9%), hcv ... | 2008 | 18461225 |
| hepatitis b virus, hepatitis c virus and hiv coinfection among people living with hiv/aids in buenos aires, argentina. | | 2010 | 20351620 |
| hepatitis c virus among non-injecting cocaine users (nicus) in south america: can injectors be a bridge? | to investigate the factors associated with hepatitis c virus (hcv) infection among non-injecting cocaine users (nicus) and to compare practices associated with hcv and hiv infection. | 2010 | 20955486 |
| diversity of hepatitis c virus genotype 1b in buenos aires, argentina: description of a new cluster associated with response to treatment. | hepatitis c virus (hcv) genotype 1b is the most prevalent in argentina. as observed in most hcv-genotype 1b described previously worldwide, the population analyzed in this work is growing at exponential rate. ten out of 22 samples tested comprise a well-defined cluster. this new cluster appears to be highly susceptible to therapy with non-pegylated interferon plus ribavirin (80% rate of sustained response). the comparative analysis of amino acid sequences yielded a characteristic pattern for res ... | 2008 | 18297718 |
| 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 |
| 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 |
| 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 |
| 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 |
| prevalence of hepatitis viruses in an anti-human immunodeficiency virus-positive population from argentina. a multicentre study. | the objectives of this study were to investigate the prevalence of infections with hepatotrophic viruses in an anti-human immunodeficiency virus (hiv)-positive population from buenos aires and to compare it among the main risk groups for hiv infection. four hundred and eighty-four consecutive patients attending the hiv outpatients clinic were studied: 359 men and 125 women, median age 29 years (range 16-67 years); 35.5% had presented acquired immune deficiency syndrome (aids)-defining conditions ... | 1999 | 10847130 |
| hepatitis c virus diversification in argentina: comparative analysis between the large city of buenos aires and the small rural town of o'brien. | the estimated prevalence of hcv infection in argentina is around 2%. however, higher rates of infection have been described in population studies of small urban and rural communities. the aim of this work was to compare the origin and diversification of hcv-1b in samples from two different epidemiological scenarios: buenos aires, a large cosmopolitan city, and o'brien, a small rural town with a high prevalence of hcv infection. | 2013 | 24386322 |
| high rates of serum selenium deficiency among hiv- and hcv-infected and uninfected drug users in buenos aires, argentina. | objective: to describe the prevalence of low serum se and determine whether hiv, hepatitis c virus (hcv) and/or the types of drugs used are associated with serum se in a cohort of infected and uninfected drug users. design: independent correlates of low serum se levels based on data collected from food recalls, physical examinations and clinical questionnaires were identified using multivariate regression analysis. setting: buenos aires, argentina subjects: a total of 205 (twenty-five female and ... | 2011 | 21740621 |