A recent spate of infections linked to romaine lettuce is now the largest multistate food-borne E. coli outbreak since 2006, according to data from the Centers for Disease Control and Prevention.
At least 84 people were infected in 19 states between mid-March and mid-April, the C.D.C. announced Wednesday, adding more than two dozen cases to its previous count. Because of the time it takes for an illness to reach the agency’s attention, illnesses contracted after April 5 may not yet have been reported, the agency said.
