while balb/c mice developed minimal myositis when infected with a diabetogenic variant ( emc-d ) , the same strain inoculated with a newly isolated myopathic variant ( emc-221a ) developed viral dose-dependent elevations in muscle-associated enzymes , bilateral limb muscle weakness , and the histopathologic changes of severe polymyositis .
C0027121
myositis
C0085655
polymyositis