“Submergence” of Western equine encephalitis virus: Evidence of positive selection argues against genetic drift and fitness reductions

Abstract excerpt

Understanding the circumstances under which arboviruses emerge is critical for the development of targeted control and prevention strategies. This is highlighted by the emergence of chikungunya and Zika viruses in the New World. However, to comprehensively understand the ways in which viruses emerge and persist, factors influencing reductions in virus activity must also be understood. Western equine encephalitis...

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