MS Speaks
Multiple Sclerosis => TREATMENTS => TYSABRI (natalizumab) => Topic started by: agate on April 02, 2015, 04:10:34 pm
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As of December 3, 2014, there were 517 Tysabri-related PML cases, all but 2 of them in MS patients. Three months later, as of March 3, 2015, there are 541 cases listed on the unofficial Website (chefarztfrau), which has been accurate so far.
That means an average of 8 cases per month in that 3-month period.