The CDC advised Americans to steer clear of the lettuce last month.

Ten people in Minnesota contracted E. coli after eating Romaine lettuce – with two becoming seriously ill as a result.

An outbreak of the bug affecting lettuce grown in the Yuma area of Arizona prompted the Centers for Disease Control (CDC) to advise all Americans not to eat Romaine unless they're certain it didn't come from that region.

Health officials in Minnesota have now announced on Tuesday that ten cases of E. coli have been identified in the state that is linked to the wider lettuce-related outbreak.

The cases were found between Apr. 20 and May 2 and affected 9 women and 1 man from both the Twin Cities metro and greater Minnesota.

Three people were hospitalized and two developed a serious, potentially fatal complication called hemolytic uremic syndrome (HUS) that can cause kidney failure and other severe problems.

It emerged after interview that the 10 had been exposed to the lettuce by eating it at restaurants, buying it at grocery stores and from consuming it in residential facilities.

"Do not eat, buy, or sell romaine lettuce unless you can confirm it is not from the Yuma growing region,” said Kirk Smith, of the Minnesota Department of Health.

"The Yuma growing region includes part of western Arizona and extends into the Imperial Valley of southeastern California, but does not include Salinas Valley or other growing regions in California."

All Romaine lettuce from the Yuma region should have been pulled from shelves by now, but you should check your refrigerators for any lettuce grown there.