BOISE, Idaho (AP) _ Health officials say 30 cases of salmonella are associated with the Boise Co-Op.

KTVB-TV reports ( ) that Central District Health Department officials are investigating the 30 confirmed salmonella cases.

They are currently trying to identify the source of the outbreak. Officials say it appears that people were exposed between June 1 and June 7.

The CDHD says the Co-Op is cooperating with the investigation.

Symptoms of salmonella include fever, diarrhea and vomiting.