Publications
Long intervals of stasis punctuated by bursts of positive selection in the seasonal evolution of influenza A virus
Wolf YI, Viboud C, Holmes EC, Koonin EV, Lipman DJ
PMID: 17067369
Abstract
The interpandemic evolution of the influenza A virus hemagglutinin (HA) protein is commonly considered a paragon of rapid evolutionary change under positive selection in which amino acid replacements are fixed by virtue of their effect on antigenicity, enabling the virus to evade immune surveillance.
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