... the majority had usednon-injecting drugs, including the anti -HCV- positiveindividuals. The risk of HCV infection associated withnon-injecting drugs is probably linked to the usual prac-tice ... donors and chronically infectedpatients. The HCV subtypes identified in the studypopulation (1a, 1b, 2b and 3a) are also consistent with the subtypes circulating in Brazil [15,21-23].These ... population in Brazil and more generally in Latin Amer-ica. Thus, the aim of the present study was to investi-gate the prevalence, genotypes/subtypes, and the factorsassociated with HCV infection in...