Hey RW -- glad to hear you are back to the Tysabri. I think I told you that my neuro does not recommend drug holidays because of the antibody issue (and the researcher who came up with this idea is one of her colleagues in the same clinic!) Anyhow, congrats on #24.

For everyone else -- more info on Tysabri, PML etc. that was published yesterday.

http://www.bloomberg.com/apps/news?p...CpKTo&refer=us