Published in TB and Outbreaks Week, October 18th, 2005
"Evidence for human immunodeficiency virus type 1 (HIV-1) superinfection was investigated among a group of four previously HIV-1 infected transfusion recipients (and the four implicated HIV-1 infected donors) identified by the Transfusion Safety Study, and two groups of 4 and 5 Brazilian injection drug users, who consistently injected themselves using shared paraphernalia," investigators in Brazil report.
"To probe these cases for possible superinfection we used heteroduplex mobility analysis (HMA) of HIV-1 tat, a technique which is a reliable for establishing epidemiologic linkages and searching for minor...
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