The Centers for Disease Control has updated its warning about romaine lettuce.

It’s now recommending that you don’t eat, serve or sell ANY romaine lettuce from the Yuma, Arizona region. That includes whole heads of lettuce, hearts of romaine, chopped romaine and salad mixes with romaine.

The previous warning had been for all store-bought chopped romaine lettuce, including salads and mixes with romaine from that area.

Basically, if you can't confirm romaine lettuce didn't come from near Yuma, don't buy, sell or eat it.

The E. coli spreading through the states is "toxin-producing," the CDC states — specifically a toxin known as Shiga. People get sick within two to eight days of swallowing the germ, which causes diarrhea, stomach cramps and vomiting. Although most recover in one week, it could lead to kidney failure.

To avoid E. coli, wash your hands regularly and thoroughly, cook meat completely, wash fruits and vegetables, avoid raw milk and don't prepare food when you're sick. If you find yourself sick, write down what you've eaten, contact your doctor and report your illness to your local health department.

Complete details on the CDC recommendations