Parasitic Myositis

• Rare in domestic animals

Nematodes

• Trichinella larvae

• Ancylostoma larvae
  • Cause inflammation and necrosis
• Ascarid larvae
• Dirofilaria immitis in dogs causing ischaemic myopathy due to infartcs

Cestodes

• Taenia solium, - cysticercosis in swine and humans
• T. ovis - cysticercosis in sheep
• T. saginata in cattle cysticercosis
• Multiceps serialis in rabbits, primates coenurosis
• Echinococcus granulosus hydatid disease in herbivores and humans

Protozoa

• Toxoplasma gondii

• Neospora caninum

• Sarcocystis

• Hepatozoon americanum

• Trypanosoma

• Babesia bovis

Arthropods

• Dipterious larvae causing myiasis
• Hypoderma spp. in cattle
  • May occasionally burrow into muscle