"HIV-1 Subtypes Among Blood Donors from Rio de Janeiro, Brazil."

According to the authors' abstract of an article published in Journal of Acquired Immune Deficiency Syndromes and Human Retrovirology, "The prevalence of HIV infection in Brazil is one of the highest in the world. In addition, transfusion-transmitted HIV accounts for 2.3% of all AIDS cases in Brazil. The objective of this study was to evaluate genetic diversity and distribution of HIV-1 strains circulating in the blood-donor population. We characterized 43 seropositive blood units collected from volunteer blood donors residing throughout Rio de Janeiro, Brazil. Viral RNA was extracted from plasma, reverse transcribed, and amplified by nested polymerase chain reaction (PCR) using HIV...

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