I read that article about Tysabri a couple of days ago. Interesting, the street did not react to those comments. BIIB or ELN did not take big hits(other than the market in general). I think the market anticipates a case of PML, because the original black box warning stated a 1 in 1000 chance.

Also ,I think there was alot of (insider) selling activity in BIIB the first part of the year because of a possible buy out of BIIB, which didn't happen.

I do agree that it was not one of the smartest statements to make, I hope he didn't have any reason to throw out that warning.

My earnest hope is that Tysabri continues to be the drug that so many people are having great sucess with!! We don't want any bad news!!!