More than 250 people in at least six states have come down with a stomach bug that may be linked to foodborne illness, according to the CDC.
The Centers for Disease Control said in a statement that as of July 22, the cyclospora infection causing diarrhea and other flu-like symptoms had been reported in Iowa, Nebraska, Texas, Wisconsin, Georgia and Connecticut.
Illinois and Kansas have also notified the agency of one case each that may have been acquired out of state but in the United States.
The CDC said 10 people have been hospitalized and most of the reported illnesses occurred from mid-June to early July.
The Food and Drug Administration is investigating the cyclospora infections, which are most often found in tropical or subtropical countries and have been linked to imported fresh produce in the past.
The agency said it is not yet clear whether the cases from each of the six states are part of the same outbreak.
The illness is usually spread when people ingest foods or water contaminated with feces. The agency said it isn't yet clear whether the cases from all of the states are linked.
The number of reported illnesses expanded from more than 200 to more than 250 on Tuesday, according to the CDC. The CDC added Georgia and Connecticut to the list of affected states.
The agency said it is investigating additional illnesses and the number of those sickened could grow.
The Associated Press contributed to this report.