I am referring to the total deaths that have occurred among the confirmed
cases of
PML in patients who have used
Tysabri since it became available for prescription in July 2006.
The National Multiple Sclerosis Society website has an Update on Tysabri and PML as of August 15, 2012. This gives the total number of confirmed PML cases since July 2006, as well as how many of these patients have died. (In truth, these are actually the numbers as of July 3, 2012.