Woodman Z, Mlisana K, Treurnicht F, Abrahams MR, Thebus R, Karim SA, Williamson, for the CAPRISA Acute I C. Short communication decreased incidence of dual infections in South african subtype C-infected women compared to a cohort ten years earlier.
AIDS Res Hum Retroviruses 2011;
27:1167-72. [PMID:
21198409 DOI:
10.1089/aid.2010.0162]
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Abstract
Previously, we determined the incidence of dual infections in a South African cohort and its association with higher viral setpoint. Ten years later, we compare the incidence and impact of dual infections at transmission on viral setpoint in a geographically similar cohort (n = 46) making use of both the heteroduplex mobility assay (HMA) and the more recent single genome amplification (SGA) approach. HIV incidence was lower in this cohort (7% compared to 18%), and we find a similar reduction in the number of dual infections (9% compared to 19%). Unlike the previous study, there was no association between either dual infection (n = 4) or multivariant transmission (n = 7) and disease progression. This study emphasized the importance of monitoring changes in the HIV epidemic as it may have important ramifications on our understanding of the natural history of disease.
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