Two Cases of Acute Myositis Associated with Influenza A Virus Infection in the Elderly

Kenzo Oba; Aki Nishihara; Kojiro Okamura; Yumiko Ajiro; Yu Yamaguchi; Kyoji Okazaki; Shuzo Sato; Tastuya Suzuki; Hiroshi Nakano; Shohei Metori

doi:10.1272/jnms.67.126

Reports on Experiments and Clinical Cases

Two Cases of Acute Myositis Associated with Influenza A Virus Infection in the Elderly

Kenzo Oba, Aki Nishihara, Kojiro Okamura, Yumiko Ajiro, Yu Yamaguchi, Kyoji Okazaki, Shuzo Sato, Tastuya Suzuki, Hiroshi Nakano, Shohei Metori

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Keywords: acute myositis, influenza A, elderly

JOURNAL FREE ACCESS

2000 Volume 67 Issue 2 Pages 126-129

DOI https://doi.org/10.1272/jnms.67.126

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Abstract

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.

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