Diseases can rapidly evolve to become more—or less—virulent, according to songbird study
Tuesday, May 28, 2013 - 16:00
in Biology & Nature
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.