After several days of hiking and camping in the forest, where you drank water from a stream, you come back and develop lasting stomach cramps and diarrhea. This is probably due to something acquired during your outdoor trip. You most likely have:

Which statement most accurately describes the mechanism by which prions cause Creutzfeldt-Jakob disease (CJD)?

A farmer reports progressive fatigue, occasional abdominal cramps, and unexplained weight loss. He frequently works barefoot in fields fertilized with untreated human waste. Which helminth infection is most consistent with this history, and what is the most appropriate next step in management?

Which of the following clinical presentations and transmission modes best match common superficial fungal infections like athlete's foot and ringworm?

A traveler returning from a tropical region has cyclical high fevers and severe headache starting two weeks after returning; malaria smear is positive for Plasmodium falciparum. Simultaneously, a roommate presents with profuse watery diarrhea after drinking unboiled well water. Which of the following management plans correctly pairs each patient with the most appropriate immediate clinical action?