Doctors: West Nile Virus May Have Dangerously Mutated
But CDC says it hasn't seen evidence of that
By Matt Cantor, Newser User
Posted Nov 9, 2012 8:34 AM CST
Some worry the West Nile virus could be mutating into something more dangerous.   (Shutterstock)

(Newser) – The West Nile virus appears to be ramping up attacks on the brain, say two doctors who have been treating sufferers of the virus for years, prompting fears the virus has mutated into a more threatening form. Mississippi doctor Art Leis tells the Washington Post that for the first time, he's seen the virus take a toll on the brain's language and thinking capacities; another doctor notes that younger patients are now showing signs of brain damage, a phenomenon that had previously been limited to older sufferers. Four patients Leis treated this year could no longer read or write, and one was partially paralyzed.

Indeed, "for the first time, we have radiographic evidence, clinical evidence of the virus attacking the higher cortical areas," he says. But the CDC says it hasn't observed such evidence, and its experts wonder if the overall surge in cases is just surfacing more serious ones. "There’s just a lot more cases this year than anybody has seen in at least 10 years," says a CDC epidemiologist. "You’re just going to see more severe cases and probably a broader variety of manifestations." When Leis asked the FDA about his concerns, a scientist initially replied that he might be "absolutely right" about "new genetic variants." A half hour later, the scientist emailed back again, saying the prior message was "recalled."

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Showing 3 of 6 comments
Nov 9, 2012 3:03 PM CST
Meanwhile, ILLEGAL TOBACCO DRUG continuing to KILL 1,350 U.S. addicts and another 180 INNOCENT Americans (who were exposed to TOXIC TOBACCO SMOKE) EVERY DAY! BAN THE ILLEGAL TOBACCO DRUG, NOW! PROSECUTE THE CRIMINAL TOBACCO PUSHERS, TOO! Then, worry about the "mosquitoes."
Nov 9, 2012 11:22 AM CST
Nov 9, 2012 9:22 AM CST
I predict in about a week we read another story about new vaccinations, come to cvs for your new west nile vaccination.