The Centers for Disease Control and Prevention are recommending against buying or eating any romaine lettuce at a grocery store or restaurant unless it can be confirmed that the lettuce did not come from the Yuma, Arizona growing region. This warning comes after 53 people from 16 states (including one in California) were found to be infected with the outbreak strain of E. coli O157:H7. Of those infected, 31 were hospitalized, including five people who have developed a type of kidney failure called hemolytic uremic syndrome.