single-dr.php

JDR Vol.9 No.5 pp. 842-847
(2014)
doi: 10.20965/jdr.2014.p0842

Review:

Influenza Project in Myanmar

Reiko Saito*1, Yadanar Kyaw*2, Yi Yi Myint*3,
Clyde Dapat*4,Go Hasegawa*1, and Makoto Naito*1

*1Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Chuo-ward, Niigata City, Niigata 951-8510, Japan

*2Thingangyun Sanpya Hospital, Yangon, Myanmar

*3Department of Medical Research (Upper Myanmar), Ministry of Health, Mandalay, Myanmar

*4Department of Virology, Tohoku University, Miyagi, Japan

Received:
May 30, 2014
Accepted:
July 2, 2014
Published:
October 1, 2014
Keywords:
influenza virus, Myanmar, surveillance, epidemiology
Abstract
The epidemiological study of influenza in Southeast Asia is limited. We surveyed influenza in Myanmar from 2007 to 2013. Nasopharyngeal swabs were collected from patients in the two cities of Yangon and Nay Pyi Taw. Samples were screened using rapid influenza diagnostic kits and identified by virus isolation. Isolates were characterized by cyclingprobe-based real-time PCR, drug susceptibility assay, and sequencing. Samples collected numbered 5,173, from which 1,686 influenza viruses were isolated during the seven-year study period. Of these, 187 strains were of seasonal influenza A(H1N1), 274 of influenza A(H1N1)pdm09, 791 of influenza A(H3N2), and 434 of influenza B. Interestingly, two zanamivir and amantadine-resistant strains each were detected in 2007 and 2008. These rare dual-resistant strains had a Q136K mutation in the NA protein and S31N substitution in the M2 protein. Our collaboration raised the influenza surveillance laboratory capacity in Myanmar and led Yangon’s National Health Laboratory – one of the nation’s leading research institutes – to being designated a National Influenza Center by the World Health Organization.
Cite this article as:
R. Saito, Y. Kyaw, Y. Myint, C. Dapat, G. Hasegawa, and M. Naito, “Influenza Project in Myanmar,” J. Disaster Res., Vol.9 No.5, pp. 842-847, 2014.
Data files:
References
  1. [1] G. Hasegawa, Y. Kyaw, L. Danjuan et al., “Influenza virus infections in Yangon, Myanmar,” Journal of Clinical Virology, the official publication of the Pan American Society for Clinical Virology, Vol.37, No.3, 2006.
  2. [2] C. Dapat, R. Saito, Y. Kyaw et al., “Epidemiology of human influenza A and B viruses in Myanmar from 2005 to 2007,” Intervirology, Vol.52, No.6, 2009.
  3. [3] I. C. Dapat, C. Dapat, T. Baranovich et al., “Genetic characterization of human influenza viruses in the pandemic (2009-2010) and post-pandemic (2010-2011) periods in Japan,” PloS one, Vol.7, No.6, 2012.
  4. [4] World Health Organization, “New influenza A(H1N1) virus infections: Global surveillance summary,” Releve epidemiologique hebdomadaire / Section d’hygiene du Secretariat de la Societe des Nations = Weekly epidemiological record / Health Section of the Secretariat of the League of Nations, Vol.84, No.20, 2009.
  5. [5] R. A. Bright, M. J. Medina, X. Xu et al., “Incidence of adamantane resistance among influenza A (H3N2) viruses isolated worldwide from 1994 to 2005: a cause for concern,” Lancet, Vol.366, No.9492, 2005.
  6. [6] C. A. Russell, T. C. Jones, I. G. Barr et al., “The global circulation of seasonal influenza A (H3N2) viruses,” Science, Vol.320, No.5874, 2008.
  7. [7] C. Dapat, Y. Suzuki, R. Saito et al., “Rare influenza A (H3N2) variants with reduced sensitivity to antiviral drugs,” Emerging Infectious Diseases, Vol.16, No.3, 2010.
  8. [8] C. Dapat, R. Saito, Y. Kyaw et al., “Delayed emergence of oseltamivir-resistant seasonal influenza A (H1N1) and pandemic influenza A(H1N1)pdm09 viruses in Myanmar,” Influenza and Other Respiratory Viruses, Vol.7, No.5, 2013.
  9. [9] A. C. Hurt, “The epidemiology and spread of drug resistant human influenza viruses,” Current Opinion in Virology, Vol.8C, 2014.

*This site is desgined based on HTML5 and CSS3 for modern browsers, e.g. Chrome, Firefox, Safari, Edge, Opera.

Last updated on Apr. 22, 2024