Novel disease in songbirds demonstrates evolution in the blink of an eye

A novel disease in songbirds has rapidly evolved to become more harmful to its host on at least two separate occasions in just two decades, according to a new study. The research provides a real-life model to help understand how diseases that threaten humans can be expected to change in virulence as they emerge.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...