Fish Roundworm
Question | Answer |
Example |

|
Can I still use the animal |
Yes, Take safety precautions
|
Commonly infected wildlife |
Fish
|
Is this animal infected |
- Infected fish have worms that are:
- Often free in the fish's body cavity
- 1/16"-1/8" long, less than 1/2" wide
- White in color
- Often in a coil shape
|
Can I get it |
Yes
- By consuming raw or undercooked fish
- Caution: Some people may develop allergic reactions after eating these worms
|
How bad can it get |

Beware: May require medical attention
|
How can I protect myself and others |
- Gut and process fish immediately to stop worms from moving into the muscle
- Kill worms in the muscle:
- Cook fish to 165°F for 10 minutes or
- Freeze at -15°F for seven days, especially when the fish will be prepared for sushi
|
Symptoms in humans |
- Occur within hours of eating infected fish
- Severe stomach pain
- Nausea and vomiting
- Worms may enter the intestine 1-2 weeks after infection
- Surgical removal may be necessary if worms burrow into the intestinal wall
- Worms are occasionally coughed up
- Seek medical advice if you become ill after eating raw or undercooked fish
|
Is it safe for pets |
Yes, if the fish is well cooked (worms cannot survive in pets for long) |
What causes it |
- A roundworm called Anisakis simplex
- Commonly known as herring worm
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