EPIDEMIOLOGICAL STUDY OF INFLUENZA VIRUS INFECTIONS IN YANGON, MYANMAR

  • HASEGAWA GO
    Division of Cellular and Molecular Pathology, Niigata University Graduate School of Medical and Dental Sciences
  • KYAW YADANAR
    Chest Medical Unit, Sanpya Hospital
  • NEW HLA MYAT
    Pediatric Unit, Sanpya Hospital
  • DANJUAN LI
    Department of Public Health, Niigata University Graduate School of Medical and Dental Sciences
  • SAITO REIKO
    Department of Public Health, Niigata University Graduate School of Medical and Dental Sciences
  • SUZUKI HIROSHI
    Department of Public Health, Niigata University Graduate School of Medical and Dental Sciences
  • EBE YUSUKE
    Division of Infection Control and Prevention, Niigata University Graduate School of Medical and Dental Sciences
  • CHO TIN MAUNG
    Respiratory Medicine Department, Yangon General Hospital
  • NAITO MAKOTO
    Division of Cellular and Molecular Pathology, Niigata University Graduate School of Medical and Dental Sciences

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Abstract

Although influenza is a highly contagious acute respiratory illness of global importance, little is known about the disease in tropical countries. An influenza survey was conducted in three sentinel sites in Yangon, Myanmar from September 2003 to December 2004. Throat or nasal swabs were collected from 616 patients with influenza-like symptoms and tested using rapid diagnostic test kits and virus isolation. Influenza B virus was detected in 6 patients from September to October, 2003. Influenza A viruses were detected in 133 patients from June to September, 2004, and the 51 influenza A viruses isolated from 72 specimens were all A⁄H3N2. Influenza virus infections occurred mainly in the rainy season in Yangon, Myanmar, but continuous ongoing influenza surveillance is needed.

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