Transient oligoarthritis of the lower extremity following influenza B virus infection: Case report

Abstract

A 12-year-old girl developed influenza B virus infection proven by typical symptoms and detection of the virus in a nasopharyngeal swab by culture and PCR. Two weeks later she developed an otherwise unexplained transient oligoarthritis of small joints of the left foot. Influenza viruses may be a hitherto underappreciated cause of a postinfectious arthritis. © 2010 Bruck et al; licensee BioMed Central Ltd.