Monday, June 13

Possible fifth case of a rare and often fatal brain infection linked to the MS drug Tysabri

Reuters Health LINKA possible fifth case of a rare and often fatal brain infection linked to the multiple sclerosis drug Tysabri has been reported to federal regulators, the Wall Street Journal reported on Monday.

The case was reported on May 16 through the Food and Drug Administration's Adverse Event Reporting System, which collects reports of possible drug reactions from physicians and drug makers. An FDA spokeswoman told the Journal that these reports do not represent confirmed cases.