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KMID : 1143420170100080185
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Public Health Weekly Report
2017 Volume.10 No. 8 p.185 ~ p.193
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Korea Influenza and Respiratory Surveillance Report, 2015-2016
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In Hye-Kyung
Lee Dong-Han
Kang Min-Gu
Chu Hyuk
Lee Joo-Yeon
Kim Ki-Soon
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Abstract
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The Korea Influenza and Respiratory Surveillance was reorganized during the 2013-2014 influenza season with 200 sentinel clinics and 36 laboratories.
In the 2015-2016 influenza season, the peak of ILI (Influenza-Like Illness) consultation rate was reported in week 7 (53.8/1,000 outpatients, Feb 7～13) and the secondary peak was observed in week 14 (35.5/1,000 outpatients, Mar 27~Apr 2). The ILI rate was above the flu warning threshold (11.3/1,000 outpatients) for a total of 17 weeks during the season. In the viral surveillance, 10,915 specimens were tested and 1,320 turned out to be influenza positive (12.1%). Of the positive specimens, 645 (48.9%) were identified as A type, and 675 (51.1%) were identified as B type. Among the seasonal influenza A viruses, 582 (44.1%) viruses were classified as subtype A(H1N1)pdm09 and 62 (4.7%) were classified as subtype A(H3N2).
Almost all isolated Influenza A(H1N1)pdm09 and A(H3N2) viruses were antigenically similar to the 2015-2016 Northern Hemisphere vaccine strain (A/California/7/2009, A/Switzerland/ 9715293/2013). B type viruses were antigenically different from the 2015-2016 Northern Hemisphere vaccine strain and similar to the Southern Hemisphere vaccine strain (B/Texas/2/2013). Resistance to NA (Neuraminidase) inhibitor was not observed in 126 tested isolates.
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KEYWORD
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