US cyclospora outbreak sickens 5,000; officials probe source

The US faces its worst Cyclospora outbreak with about 5,000 cases, primarily in Michigan.

Health officials suspect lettuce or salad greens as a possible source, but no definitive cause confirmed.

Cyclospora cayetanensis is a parasite transmitted via contaminated food or water, causing cyclosporiasis.

Consumers are advised to practice good hygiene when handling fresh produce amid ongoing health concerns.

The outbreak has led Taco Bell to voluntarily remove some ingredients as a precautionary measure.