Two cases of acute myositis associated with influenza A virus infection in the elderly

J Nippon Med Sch. 2000 Apr;67(2):126-9. doi: 10.1272/jnms.67.126.


During the influenza epidemic of 1998-1999, we observed two elderly patients with influenza-like symptoms who had evidence of acute myositis with elevated serum enzymes. Influenza A infection was confirmed serologically in either case. The present cases suggest that it is important to distinguish influenzal myositis from other forms of myopathy in the elderly patients.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Acute Disease
  • Aged
  • Diagnosis, Differential
  • Female
  • Humans
  • Influenza A virus*
  • Influenza, Human*
  • Male
  • Middle Aged
  • Myositis / diagnosis
  • Myositis / therapy
  • Myositis / virology*
  • Treatment Outcome