1. Undercooked or Raw Meat & Fish
Pork: May contain Trichinella spiralis, causing trichinosis (muscle pain, fever, swelling).
Beef: Can harbor Taenia saginata (beef tapeworm).
Fish (especially salmon, herring, cod): May contain Anisakis worms, causing severe gastric pain, vomiting, and allergic reactions.
Sushi/sashimi: Risk of parasites unless fish was previously frozen to kill larvae.
2. Raw or Undercooked Shellfish
Oysters, clams, mussels: Filter feeders that can accumulate parasites like Trematodes from contaminated waters.
Symptoms: Diarrhea, abdominal pain, and sometimes long-term liver or lung complications.
3. Unwashed or Raw Produce
Leafy greens, berries, herbs: Can carry Cyclospora, Giardia, or Toxoplasma from contaminated soil or water.
Even organic produce can be contaminated if irrigated with untreated water.