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Low pathogenic avian influenza (poultry) H7N9, China (People's Rep. of) (OIE, January 27 2014): 3 more environmental samples from markets

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  • Low pathogenic avian influenza (poultry) H7N9, China (People's Rep. of) (OIE, January 27 2014): 3 more environmental samples from markets

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


    Low pathogenic avian influenza (poultry) H7N9, China (People's Rep. of)


    Information received on 26/01/2014 from Dr Zhang Zhongqui, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)
    • Summary
      • Report type Follow-up report No. 11
      • Date of start of the event 04/04/2013
      • Date of pre-confirmation of the event 04/04/2013
      • Report date 26/01/2014
      • Date submitted to OIE 26/01/2014
      • Reason for notification New strain of a listed disease
      • Manifestation of disease Sub-clinical infection
      • Causal agent Low pathogenic avian influenza virus
      • Serotype H7N9
      • Nature of diagnosis Laboratory (basic), Laboratory (advanced)
      • This event pertains to the whole country
      • Related reports
        • Immediate notification (04/04/2013)
        • Follow-up report No. 1 (05/04/2013)
        • Follow-up report No. 2 (10/04/2013)
        • Follow-up report No. 3 (16/04/2013)
        • Follow-up report No. 4 (22/04/2013)
        • Follow-up report No. 5 (24/04/2013)
        • Follow-up report No. 6 (26/04/2013)
        • Follow-up report No. 7 (05/05/2013)
        • Follow-up report No. 8 (09/05/2013)
        • Follow-up report No. 9 (21/05/2013)
        • Follow-up report No. 10 (16/01/2014)
        • Follow-up report No. 11 (26/01/2014)

    • New outbreaks (2)
      • Outbreak 1 - Agriculture products market, Guangzhou, GUANGDONG
        • Date of start of the outbreak 11/01/2014
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Not applicable
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 1200 – 2 – 0 – 1200 – 0
          • Affected population:
            • All 185 specimens (chicken) were collected according to the national surveillance plan and no clinical signs were found.
            • Two specimens tested positive from Changban agriculture product market and Yijinxinjie agriculture market, respectively.

      • Outbreak 2 - Meiling Agriculture products market, Jinjiang, Quanzhou, FUJIAN
        • Date of start of the outbreak 16/01/2014
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Not applicable
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - … – 1 - … – … – …
          • Affected population:
            • All 220 specimens (89 chickens, 53 pigeons, 22 ducks and 56 environment specimens) were collected according to the national surveillance plan and no clinical signs were found.
            • One environment specimen tested positive from Meiling agriculture product market.

    • Summary of outbreaks
      • Total outbreaks: 2
        • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds – 1200 – 3 – 0 – 1200 – 0

        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Birds – ** – ** – ** – **
          • *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

    • Control measures
      • Measures applied
        • Stamping out
        • Movement control inside the country
        • Zoning
        • Disinfection of infected premises/establishment(s)
        • Dipping / Spraying
        • No vaccination
        • No treatment of affected animals

      • Measures to be applied
        • No other measures

    • Diagnostic test results
      • Laboratory name and type – Species – Test - Test date – Result
        • Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE’s Reference Laboratory) – Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 13/01/2014 – Positive
        • Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE’s Reference Laboratory) – Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 19/01/2014 – Positive
        • Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE’s Reference Laboratory) - Birds - virus isolation - 13/01/2014 – Positive
        • Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE’s Reference Laboratory) – Birds - virus isolation - 19/01/2014 – Positive

    • Future Reporting
      • The event is continuing. Weekly follow-up reports will be submitted.

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