The CDC is currently investigating a multi-state Listeria outbreak linked to pre-cooked chicken.

By: KDKA-TV News Staff

PITTSBURGH (KDKA) — If you’re hosting a cookout today, the CDC has a warning.

READ MORE: More Than 240 Runners Complete 150-Mile Relay From Pittsburgh To Maryland On Great Allegheny Passage

If you’re making a cold dish with pre-cooked chicken: reheat it before using it.

The warning is because of a listeria outbreak being investigated by the agency’s food and safety division.

So far, three people have gotten sick in two states, and one of those people died.

All three cases ate foods served at a long-term care facility or hospital.

Symptoms of listeria include headache, stiff neck, confusion, loss of balance, and convulsions — in addition to fever and muscle aches.

READ MORE: Judge Refuses To Seal Records And Proceedings In Custody Case Involving U.S. Senate Candidate Sean Parnell

And that warning is a good reminder that food-borne illnesses increase with warmer, humid temperatures.

It’s estimated that every year, 48 million Americans get sick, 128,000 are hospitalized and 3,000 die from food-borne illnesses.

The USDA says make sure hands and surfaces are clean.

Keep raw meats and other foods separate to prevent cross contamination.

And cook foods to the proper internal temperature, measuring with a meat thermometer.

The agency says to cook raw ground beef, pork, or lamb to 160 degrees and raw poultry to 165.

MORE NEWS: Ohio House Democrats Call For Action On Legislation Removing Time Limits For Sexual Assault Victims To File Lawsuits

Do not leave food out for more than 2 hours.