A sign marks an entrance to Saint Thomas Hospital medical campus in Nashville, Tenn., on Wednesday, Oct. 3, 2012. An outbreak of a rare and deadly form of meningitis that has sickened more than two dozen people was first detected among patients treated at the Saint Thomas Outpatient Neurosurgery Center in the complex. (AP Photo/Erik Schelzig)

Associated Press
A sign marks an entrance to Saint Thomas Hospital medical campus in Nashville, Tenn., on Wednesday, Oct. 3, 2012. An outbreak of a rare and deadly form of meningitis that has sickened more than two dozen people was first detected among patients treated at the Saint Thomas Outpatient Neurosurgery Center in the complex. (AP Photo/Erik Schelzig)
A sign marks an entrance to Saint Thomas Hospital medical campus in Nashville, Tenn., on Wednesday, Oct. 3, 2012. An outbreak of a rare and deadly form of meningitis that has sickened more than two dozen people was first detected among patients treated at the Saint Thomas Outpatient Neurosurgery Center in the complex. (AP Photo/Erik Schelzig)