The U.S. Food and Drug Administration has elevated the risk warning for broccoli sold at Walmart. The warning, which was originally issued in December, has been increased to the highest recall category of the FDA, reports have said.
"This advisory is being initiated due to possibility of contamination with Listeria monocytogenes. The potential for contamination was discovered during random sampling by Texas Health & Human Services from a Texas store location where one of multiple samples yielded a positive test result," the US FDA has said.
