As cyclosporiasis spreads and Taco Bell pulls some ingredients out of caution, one can't help but think of other restaurants that might be at risk.

The cyclosporiasis outbreak has sickened thousands of people nationwide, and Michigan has been the hardest hit.

State and federal investigators are probing the fast-food chain’s possible connection to cyclosporiasis

Upwards of 1,600 people who contracted cyclosporiasis reported eating at the chain beforehand, the CDC and FDA said.