Visceral larva migrans  Baylisascaris procyonis,Toxocara canis,Toxocara cati, and Ascaris suum  Birds, emus, cats, chinchillas, porcupines, prairie dogs, rabbits, weasels, woodchucks, and woodrats  Gastrointestinal, e.g., coughing, shortness of breath, fever, and abdominal pain