Trichinella spiralis. Unlike other members of the Nematoda family, this one is caused by eating contaminated, badly prepared meat worldwide. Diagnosis is through ELISA testing or muscle biopsy. Symptoms include intestinal inflammation, edema, nausea, blurred vision, edema of face, cough. Treatment depends on if it is self limiting, where rest, analgesics, and antipyretics are used. Life threatening requires prednisone, or thiabendazole.