Listeria outbreak: What to do with deli meats and what to know

NEW YORK (AP) — As U.S. health officials investigate a fatal outbreak of listeria food poisoning, they’re advising people who are pregnant, elderly or have compromised immune systems to avoid eating sliced deli meat unless it’s recooked at home to be steaming hot.

The U.S. Centers for Disease Control and Prevention didn’t mandate a food recall as of early Saturday, because it remains unclear what specific products have been contaminated with the bacteria now blamed for two deaths and 28 hospitalizations across 12 states. This means the contaminated food may still be in circulation, and consumers should consider their personal risk level when consuming deli meats.

Federal health officials warned on Friday that the number of illnesses is likely an undercount, because people who recover at home aren’t likely to be tested. For the same reason, the outbreak may have spread wider than the states where listeria infections have been reported, mostly in the Midwest and along the U.S. eastern coast.

The largest number known to get sick — seven — were in New York, according to the CDC. The people who died were from Illinois and New Jersey.

Of the people investigators have been able to interview, “89% reported eating meats sliced at a deli, most commonly deli-sliced turkey, liverwurst, and ham. Meats were sliced at a variety of supermarket and grocery store delis,” the CDC said.

And samples collected from victims from May 29 to July 5 show the bacteria is closely related genetically.

“This information suggests that meats sliced at the deli are a likely source of this outbreak. However, at this time CDC doesn’t have enough information to say which deli meats are the source of this outbreak,” the agency said in a statement published on its website Friday.

Listeria infections typically cause fever, muscle aches and tiredness and may cause stiff neck, confusion, loss of balance and convulsions. Symptoms can occur quickly or to up to 10 weeks after eating contaminated food.

It can be diagnosed by testing bodily fluids, usually blood, and sometimes urine or spinal fluid, according to the Mayo Clinic.

Listeria infections are especially dangerous for people older than 65 and