The World Health Organization says it is launching a $1.5 billion campaign, hopefully including a new vaccine, to eliminate outbreaks of bacterial meningitis across Africa by 2030.

The Washtenaw County Health Department is investigating a confirmed case of meningococcal meningitis reported on Wednesday.

But researchers may have found a new application for the widely used technology: detecting brain activity in comatose patients. The researchers gave patients commands and retrieved EEG data from small discs attached to the patients' scalps during the sessions. However, the new study suggests that EEG -- a readily available tool in almost all hospitals -- can potentially change how doctors manage patients with brain injury. "These patients who have this brain activity have the possibility of recovering significant neurological function," Rosenow, a professor of neurological surgery at Northwestern University Feinberg School of Medicine, told CNN. We see there is an ability to recover and there's more brain activity than is outwardly visible."