Immune-mediated positive selection drives human immunodeficiency virus type 1 molecular variation and predicts disease duration.

Abstract excerpt

Using likelihood-based evolutionary methods, we demonstrate that the broad genetic diversity of human immunodeficiency virus type 1 (HIV-1) in an infected individual is a consequence of site-specific positive selection for diversity, a likely consequence of immune recognition. In particular, the extent of positive selection appears to be a good predictor of disease duration. Positively selected sites along HIV-1...

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