The Centers for Disease Control and Prevention (CDC) says the US-grown romaine lettuce was still suffering from Americans with symptoms related to an E. coli outbreak.
In a Thursday afternoon press release, the CDC reported nine more victims of E. coli outbreaks, 52 across the country. There were no reported deaths, but 19 were hospitalized for the outbreak admitted.
"No general producer, supplier, distributor or brand of romaine lettuce has been identified," the CDC wrote in its press release.
Consumers are advised not to avoid a salad grown in regions in the north or central California where officials believe the outbreak is centered. Americans are also advised not to avoid romaine lettuce that is not identified with a location for growth.
"Check to see if there is a label or box on a label to confirm that it was not harvested in central coastal areas in Northern and Central California," warns the CDC. "If the romaine lettuce is not labeled, do not buy, serve, sell, or eat it."
"Individuals with symptoms of E. coli infection, such as severe stomach cramps, diarrhea (often bloody), and vomiting, who think they may have been ill from eating romaine lettuce, should contact their doctor and their illness Report health department, "continued the release.
The CDC's investigation has been limited since the ECB's first announcement by the agency. Coli outbreak, which urged the Americans to avoid the entire Romaine lettuce nationwide.
"The CDC recommends that American consumers refrain from eating romaine lettuce, and retailers and restaurants do not serve or sell until we learn more about the outbreak," the agency said in a warning last month.