Food Poisoning from Spoiled Food: Risks, Symptoms, and Prevention

Rotten Food Is a Major Foodborne Illness Source

Spoilage microbes (bacteria, molds, yeasts) and their toxins cause food poisoning. High-risk foods: meat, poultry, seafood, eggs, dairy, cooked rice/pasta, cut produce.

Key Pathogens & Toxins

• Salmonella, Campylobacter, E. coli O157:H7, Clostridium perfringens, Bacillus cereus, Staph. aureus enterotoxin.
• Mycotoxins (aflatoxin, ochratoxin) from molds—heat stable.
• Scombroid (histamine) from spoiled fish.

Symptoms

• Nausea, vomiting, diarrhea, abdominal cramps, fever.
• Onset: 1–72 hrs (toxin-mediated: 1–6 hrs; infectious: 6–72 hrs).
• Severe: dehydration, bloody stool, HUS (E. coli O157), botulism (paralysis).

Prevention (WHO 5 Keys)

1. Keep clean (hands, surfaces).
2. Separate raw/cooked.
3. Cook thoroughly (75°C core).
4. Keep safe temperatures (<5°C or >60°C).
5. Use safe water/raw materials.

When to Seek Care

• Bloody diarrhea, high fever (>38.5°C), signs of dehydration, neurological symptoms, pregnancy, immunocompromise, >3 days duration.