| serological, epidemiological and molecular aspects of hepatitis c virus infection in a population from londrina, pr, brazil, 2001-2002. | serological, epidemiological and molecular aspects of hepatitis c virus (hcv) infection were evaluated in 183 subjects from londrina, paraná, brazil, and adjacent areas. serum samples which tested anti-hcv positive by microparticle enzyme immunoassay (meia) obtained from eight patients with chronic hepatitis c, 48 blood donors, and 127 patients infected with the human immunodeficiency virus (hiv) were submitted to another enzyme immunoassay (elisa) and to the polymerase chain reaction (pcr). abo ... | 2004 | 15654474 |
| hiv-1 genotypic resistance profile of patients failing antiretroviral therapy in paraná, brazil. | antiretroviral therapy (art) has reduced morbidity and mortality related to human immunodeficiency virus (hiv) infection, but in spite of this advance, hiv mutations decrease antiretroviral susceptibility, thus contributing to treatment failure in patients. genotyping hiv-1 allows the selection of new drugs after initial drug failure. this study evaluated the genotypic profile of hiv-1 isolates from treated (drug-experienced) patients in paraná, brazil. the prevalence of mutations in reverse tra ... | 2010 | 20963321 |
| assessing network scale-up estimates for groups most at risk of hiv/aids: evidence from a multiple-method study of heavy drug users in curitiba, brazil. | one of the many challenges hindering the global response to the human immunodeficiency virus (hiv)/acquired immunodeficiency syndrome (aids) epidemic is the difficulty of collecting reliable information about the populations most at risk for the disease. thus, the authors empirically assessed a promising new method for estimating the sizes of most at-risk populations: the network scale-up method. using 4 different data sources, 2 of which were from other researchers, the authors produced 5 estim ... | 2011 | 22003188 |