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Schistosomiasis

Alternative Names

Bilharzia; Katayama fever; Swimmer's itch; Blood fluke

Symptoms

  • Symptoms vary with the species of worm and the phase of infection.
  • Initial invasion of the skin may cause itching and a rash (swimmer's itch).
  • Heavy infestation (a large number of parasites) may cause fever, chills, lymph node enlargement, and liver and spleen enlargement.
  • Urinary symptoms may include frequent urination, painful urination (dysuria), and blood in the urine (hematuria).
  • Intestinal symptoms include abdominal pain and diarrhea (which may be bloody).

Exams and Tests

  • Test for schistosome eggs in urine
  • Test for schistosome eggs in stool
  • Biopsy of tissue suspected of being infected
  • Anemia (low number of red blood cells)
  • High eosinophil (a type of white blood cell) count in blood
  • Low platelets
  • Urinalysis
  • Antibody test

Review Date: 9/5/2006
Reviewed By: D. Scott Smith, M.D., MSc, DTM&H, Chief of Infectious Disease & Geographic Medicine, Kaiser Redwood City, CA & Adjunct Assistant Professor, Stanford University. Review provided by VeriMed Healthcare Network.

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