Hergenreder is one of at least 27 patients with a history of vaping who have been hospitalized in recent weeks in Illinois for an unknown respiratory illness. Last month, one of those patients died, and more than 200 other cases have been reported in 24 other states as of late last week, according to the Centers for Disease Control and Prevention. The agency is assisting the Illinois Department of Public Health in investigating the cases, along with the Food and Drug Administration.