Missouri health officials said they have been notified of a third confirmed case of cyclospora infection.
The state Department of Health and Senior Services said Friday the latest report of the stomach bug came from a health provider in the Kansas City metro area. The others were reported earlier this week from Jackson County and Taney County.
The state health department said the sources of the Missouri cases have not been confirmed, and it's not clear if they're linked to cyclospora infections in more than a dozen other states.
Officials in Iowa and Nebraska have said they believe cases those two states are linked to bagged salad mix.
Cyclospora infections are mostly found in tropical or subtropical countries. Symptoms include diarrhea, severe stomach cramps or nausea.