Acute myositis associated with influenza B infection.
An epidemic of acute myositis affecting children occurred in association with influenza B infections. The myositis followed the initial influenza-like episode, and almost exclusively involved the gastrocnemius and soleus muscles. Patients improved without specific treatment and made a complete recovery in four to five days. Laboratory studies characteristically showed elevated CPK, SGOT values, and a low peripheral white blood cell count. Influenza B virus was isolated from 11 of the 17 patients studied. This influenza-associated acute myositis of childhood is a recognized syndrome that should not be confused with dermatomyositis.
D000208:Acute Disease; D000914:Antibodies, Viral / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology; D005260:Female; D006801:Humans; D007251:Influenza, Human / Q000150:complications* / Q000453:epidemiology / Q000276:immunology; D008297:Male; D009220:Myositis / Q000150:complications* / Q000453:epidemiology / Q000276:immunology; D009975:Orthomyxoviridae / Q000276:immunology; D014861:Washington
D000914:Antibodies, Viral