Researchers and public health officials are pointing to sewage contamination in the food supply as one of the most plausible theories for the current outbreak.

State at the center of the cyclospora outbreak, Michigan, said residents can go back to eating lettuce as usual. Some food experts agree.

The Cyclospora outbreak is hitting lettuce sales and restaurant traffic, as consumer concerns spread beyond businesses linked to the contaminated produce.

A former CDC director is urging Americans to be vigilant about the produce they consume, particularly raw fruits and vegetables.

(In story from August 8, paragraph 10, corrects foot-traffic data comparison) By Danielle Kaye and Waylon Cunningham NEW YORK, Aug 8 (Reuters) - Michigan health officials cleared shoppers to put lettuce back in their grocery carts,

The largest cluster of cases tied back to Taylor Farms lettuce now accounts for cases in 15 states.

Cyclospora, the parasite that has sickened thousands this summer in the U.S., requires time in the human digestive tract to reproduce.

Cyclospora cases are declining in Tennessee, and health officials say most lettuce sold in stores is safe to eat. Here's what consumers should know and how to reduce their risk.

Health experts are trying to understand how the food-borne parasite can cause symptoms that come and go, sometimes for weeks.

Two people in Michigan “with significant underlying health conditions” died from complications of cyclosporiasis, state officials said.

The nationwide cyclospora outbreak is very likely a result of sewage contamination in the food supply, scientific and public health researchers say.