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The vast majority of infected individuals have no symptoms. Symptoms seen with heavy infections may include:
- vague abdominal discomfort
- nausea, vomiting, or diarrhea
- loss of appetite and weight loss
- abdominal pain due to intestinal blockage by worms
- individuals with vitamin B-12 deficiency may suffer:
- fatigue due to anemia
- numbness and tingling in their limbs
- confusion or dementia
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