Hints of a more virulent, mutating West Nile virus emerge – The Washington PostPosted: November 13, 2012
Still, Angus, who has treated West Nile patients for a decade, and Leis, who has more experience treating severe West Nile illness than perhaps any doctor in the country, both suspect the virus has changed — a view bolstered by a Texas virologist whose laboratory has found signs of genetic changes in virus collected from the Houston area.
“I’ve been struck this year that I’m seeing more patients where the brain dysfunction has been very much worse,” said Angus, of Detroit’s Henry Ford Hospital. “It makes you wonder if something’s different, if something’s changed.”
And while the virus in the past has typically invaded the brain and spinal cord only of people who have weakened immune systems, such as the elderly and transplant or cancer patients, Angus this summer treated a severely affected woman in her 20s and a man in his 40s.