A sign is seen outside the door to the Fungal Outbreak Clinic at St. Joseph Mercy Ann Arbor hospital in Ypsilanti, Michigan

 
A sign is seen outside the door to the Fungal Outbreak Clinic at St. Joseph Mercy Ann Arbor hospital in Ypsilanti, Michigan
A sign is seen outside the door to the Fungal Outbreak Clinic at St. Joseph Mercy Ann Arbor hospital in Ypsilanti, Michigan December 21, 2012. St. Joseph Mercy -- a 537-bed Catholic hospital located on the doorstep of the University of Michigan -- has played an outsized role in the fight against one of the largest fungal meningitis outbreaks in US history, treating 169 of the state's 223 cases, including 7 people who died. REUTERS/Rebecca Cook