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Highly pathogenic avian influenza H5N8, Korea (Rep. of) (OIE, February 28 2014): 12 New Poultry Outbreaks, gene seq. at GenBank

Giuseppe

Giuseppe

Emeritus
[Source: OIE, full page: (LINK). Edited.]


Highly pathogenic avian influenza H5N8, Korea (Rep. of)


Information received on 28/02/2014 from Dr TaeYung Kim, Director General, Livestock Policy Bureau, Ministry for Food, Agriculture, Forestry & Fisheries, Sejong-Si, Korea (Rep. of)

  • Summary
    • Report type Follow-up report No. 3
    • Date of start of the event 16/01/2014
    • Date of pre-confirmation of the event 16/01/2014
    • Report date 28/02/2014
    • Date submitted to OIE 28/02/2014
    • Reason for notification Reoccurrence of a listed disease
    • Date of previous occurrence 26/05/2011
    • Manifestation of disease Clinical disease
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H5N8
    • Nature of diagnosis Laboratory (advanced)
    • This event pertains to a defined zone within the country
    • Related reports
      • Immediate notification (17/01/2014)
      • Follow-up report No. 1 (25/01/2014)
      • Follow-up report No. 2 (10/02/2014)
      • Follow-up report No. 3 (28/02/2014)
  • New outbreaks (12)
    • Outbreak 1 83-1, Jangseon-ri, Deokjin-myeon, Yeongam-gun, JEOLLANAM-DO
      • Date of start of the outbreak 28/01/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 10000 ? 6000 ? 0 ? 10000 - ?
        • Affected population breeding ducks
    • Outbreak 2 764-1, Samjeong-ri, Daeso-myeon, Eumseong-gun, CHUNGCHEONGBUK-DO
      • Date of start of the outbreak 02/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 9100 ? 1365 ? 0 ? 9100 - ?
        • Affected population breeding ducks
    • Outbreak 3 1-3, Deokhwa-ri, Dopo-myeon, Yeongam-gun, JEOLLANAM-DO
      • Date of start of the outbreak 06/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 27000 ? 10320 ? 10320 ? 16680 - ?
        • Affected population layer chickens
    • Outbreak 4 461-35, Songpyeong-ri, Yeongam-eup, Yeongam-gun, JEOLLANAM-DO
      • Date of start of the outbreak 11/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 12100 ? 2550 ? 0 ? 12100 ? 0
        • Affected population ducks for meat : 7000 / breeding ducks : 5100
    • Outbreak 5 524, Samsan-dong, Jeongeup-si, JEOLLABUK-DO
      • Date of start of the outbreak 13/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 16000 ? 300 ? 300 ? 15700 ? 0
        • Affected population breeding chicken
    • Outbreak 6 194, Wira-ri, Ungok-myeon, Cheongyang-gun, CHUNGCHEONGNAM-DO
      • Date of start of the outbreak 14/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 35000 ? 200 ? 200 ? 34800 ? 0
        • Affected population layer chickens
    • Outbreak 7 359-4, Ban-gyo-ri, Yongji-myeon, Gimje-si, JEOLLABUK-DO
      • Date of start of the outbreak 16/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 7380 ? 2 ? 0 ? 7380 ? 0
        • Affected population breeding ducks
    • Outbreak 8 679, Bonghyeon-ri, Maengdong-myeon, Eumseong-gun, CHUNGCHEONGBUK-DO
      • Date of start of the outbreak 17/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 6100 ? 88 ? 88 ? 6012 ? 0
        • Affected population ducks for meat
    • Outbreak 9 911-17, Majeon-ri, Yeonmu-eup, Nonsan-si, CHUNGCHEONGNAM-DO
      • Date of start of the outbreak 20/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 40000 ? 150 ? 150 ? 39850 ? 0
        • Affected population breeding chickens
    • Outbreak 10 146 Dowon-ri, Byeongcheon-myeon, Dongnam-gu, Cheonan-si,, CHUNGCHEONGNAM-DO
      • Date of start of the outbreak 23/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 120000 ? 986 ? 986 ? 119014 - ?
        • Affected population layer chickens
    • Outbreak 11 40-1, Daesa-ri, Paengseong-eup, Pyeongtaek-si, GYEONGGI-DO
      • Date of start of the outbreak 23/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 18600 ? 9300 ? 0 ? 18600 - ?
        • Affected population breeding ducks
    • Outbreak 12 951, Yeongyang-ri, Myoryang-myeon, Yeonggwang-gun, JEOLLANAM-DO
      • Date of start of the outbreak 26/02/2014
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 20000 ? 23 ? 23 ? 19977 - ?
        • Affected population breeding ducks
  • Summary of outbreaks
    • Total outbreaks: 12
      • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 321280 ? 31284 ? 12067 ? 309213 ? 0
      • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds - 9.74% - 3.76% - 38.57% ? **
        • *Removed from the susceptible population through death, destruction and/or slaughter
        • **Not calculated because of missing information
  • Epidemiology
    • Source of the outbreak(s) or origin of infection
      • Unknown or inconclusive
  • Epidemiological comments
    • The H5N8 subtype of viruses have a series of basic amino acid at the hemagglutinin (HA) cleavage site such as LREKRRKR/GLF or LRERRRKR/GLF, which means highly pathogenic to chickens.
    • The intravenous pathogenic index was 3.0, which means highly pathogenic to chickens.
    • Animal and Plant Quarantine Agency (QIA) injected intravenously 0.1ml of the 1/10 diluted virus into each of ten 6-week-old SPF chickens.
    • All birds were died within 24 hours.
    • QIA submitted the genetic information to GenBank and submitted manuscript to scientific society (Emerging Infectious Disease, MS#EID-14-0233) about the brief situation of outbreaks and the genetic information on 27 January 2014.
  • Control measures
    • Measures applied
      • Control of wildlife reservoirs
      • Stamping out
      • Quarantine
      • Movement control inside the country
      • Zoning
      • Disinfection of infected premises/establishment(s)
      • Vaccination prohibited
      • No treatment of affected animals
    • Measures to be applied
      • No other measures
  • Diagnostic test results
    • Laboratory name and type ? Species ? Test - Test date ? Result
      • Animal and Plant Quarantine Agency (National laboratory) ? Birds - real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) - 26/02/2014 ? Positive
      • Animal and Plant Quarantine Agency (National laboratory) ? Birds - virus isolation - 26/02/2014 ? Positive
      • Animal and Plant Quarantine Agency (National laboratory) ? Birds - virus sequencing - 26/02/2014 ? Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.
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