Death is caused by heart failure or respiratory or kidney malfunction. A muscle biopsy test is most accurate but is hardly ever used. Digestion of the muscle in gastric enzymes will reveal the parasites. There are also immunodiagnostic tests in use. There are no satisfactory treatments.
Doctors mainly try to relieve the symptoms with analgesics and corticosteroids.
Control the rodent population. Be sure to cook your pork thoroughly.