Outbreak investigators say a cattle feedlot near a canal providing water to growing regions in Arizona is a key element in their hypothesis about the source of E. coli that contaminated romaine lettuce earlier this year.

The Food and Drug Administration has been investigating the outbreak, linked to romaine grown in the Yuma, AZ, area…

Federal officials issued a public health alert Monday night warning people to watch for signs of parasitic infections if they have eaten any of more than two dozen varieties of wraps and salads sold nationwide by retailers including Kroger and Trader Joe’s. 

The distributor of the ready-to-eat products said lettuce supplied by Fresh Express is…

We’ve been reporting on the E. coli outbreak linked to romaine lettuce since federal officials first announced it on April 13. Actually, though romaine hadn’t been connected to it yet, we started reporting on the outbreak April 4. A day earlier New Jersey health officials had alerted the public to a cluster of…

This NASA photo shows a canal snaking through the Arizona desert near Yuma, AZ. Such canals carry water to communities and farmers.

Federal officials say contaminated canal water near romaine lettuce growing fields is the likely source of the unusually virulent strain of E. coli that has sickened people across 36…

Canadian officials say an E. coli outbreak linked to romaine lettuce from Arizona has ended with only eight confirmed cases in their country. In the United States, where at least five people have died in the outbreak, officials have not updated the public for weeks. 

Photo illustration

The U.S. outbreak…

More people are sick, more people have died, and more states are reporting E. coli infections in an ongoing outbreak linked to romaine lettuce. As the CDC was releasing the new numbers Friday, growers were promising to figure out what happened and take action.

Outbreak investigators have been trying to trace the romaine for two…

Investigators continue their tedious search for the source of the E. coli that apparently contaminated romaine lettuce, causing this spring’s deadly outbreak. But it’s becoming increasingly unlikely they will find a smoking gun.

The human toll so far, including one person in California who died, is 132 confirmed cases, 72 hospitalizations, and 20 people with…

This week saw the E. coli O157:H7 outbreak associated with romaine lettuce expand to include every border state from New York to Washington state.

With 149 people infected in 29 states, it was probably inevitable that Canada also would find itself with a romaine lettuce problem. After all, it does not have a border wall…