Wilmington, DE – Many Delaware residents woke up sick on Black Friday after large Thanksgiving meals, and state health officials say food-poisoning risks tied to undercooked turkey and improperly stored leftovers may be responsible for the rise in stomach illness reports.

According to the Delaware Division of Public Health, the day after Thanksgiving frequently brings an increase in nausea, stomach cramps, diarrhea, and fatigue. While overeating and rich foods can play a role, experts say improperly cooked turkey and dishes left out for extended periods are among the most common sources of post-holiday illness in Delaware.

Large turkeys pose a particular challenge. The thickest areas of the bird—deep in the breast and thigh—often heat unevenly and may not reach the required 165°F internal temperature even when the outside appears fully done. Families trying to avoid dryness sometimes pull the turkey early, unintentionally increasing exposure to bacteria such as Salmonella and Campylobacter, both commonly linked to poultry that isn’t cooked thoroughly.

Leftovers can also carry significant risks. Delaware’s Thanksgiving buffets, potlucks, and long family gatherings often result in food sitting out at room temperature for hours. Once dishes remain in the “danger zone” between 40°F and 140°F for more than two hours, bacteria multiply quickly. Organisms such as Staphylococcus aureus and Bacillus cereus—both associated with food left out too long—can cause rapid-onset vomiting and stomach discomfort.

Nutrition specialists recommend discarding questionable leftovers, reheating foods to 165°F, and staying hydrated if symptoms occur. Severe vomiting, dehydration, high fever, or symptoms lasting more than 24 hours should be evaluated by a medical professional.

ADDITIONAL SAFETY TIPS

✓ Check leftovers: Discard anything left out for more than 2 hours.
✓ Reheat properly: Heat all leftovers to 165°F before eating.
✓ Watch for symptoms: Sudden nausea, cramps, or diarrhea may indicate bacterial illness.
✓ Cook turkey fully: Verify temperature at the thickest parts of the bird.
✓ Seek care when needed: High fever, dehydration, or blood in stool warrant medical attention.