E. coli-infected salad saga rages on: 31 more sickened, bringing the total to 84

The E. coli outbreak linked to tainted romaine lettuce has grown and sickened 84 people from 19 states, US officials say.

The US Centers for Disease Control said Wednesday that at least another 31 cases are believed to be tied to romaine lettuce grown in Yuma, Arizona.

The agency says those infected range in age from 1 to 88. More than half of are female.

Forty-two people have been hospitalized, including nine battling kidney failure as the agency scrambles to sniff out the source of the E. coli outbreak.

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