II. General

  1. Less common in returning travelers
    1. Unusual if travel less than 1 month
  2. May be associated with decreased Eosinophils

III. Causes: Helminth Infections (Nematodes)

  1. Tapeworms (Cestodes)
    1. Echinococcosis
    2. Cysticercosis
  2. Flukes (Trematodes)
    1. Schistosomiasis
    2. Swimmer's Itch
  3. Whipworm
    1. Trichuris trichiura
  4. Roundworms (Nematodes)
    1. Enterobius vermicularis (Pinworm)
    2. Trichinella spiralis (Trichinosis)
    3. Lymphatic Filariasis
    4. Toxocariasis
    5. Strongyloides
    6. Soil Transmitted Helminths (STH)
      1. Worldwide the most common intestinal Parasites worldwide (2.6 billion infections/year)
      2. Ascaris lumbricoides (roundworm)
      3. Ancylostoma duodenale or Necator americanus (Hookworm)
      4. Trichuris trichiura (Whipworm)
    7. Transmission from Dogs and Cats
      1. Visceral Larva Migrans
      2. Ocular Larva Migrans
      3. Cutaneous Larva Migrans

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