China - 1 new outbreak of highly pathogenic avian influenza H7N9 in birds in markets in Guangdong (OIE, February 18, 2017)

[Pathfinder]

Highly pathogenic avian influenza, China (People's Rep. of)

Information received on 18/02/2017 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 Immediate notification Date of start of the event 10/01/2017 Date of confirmation of the event 10/01/2017 Report date 18/02/2017 Date submitted to OIE 18/02/2017 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 2015 Manifestation of disease Sub-clinical infection Causal agent Highly pathogenic avian influenza virus Serotype H7N9 Nature of diagnosis Laboratory (advanced) This event pertains to a defined zone within the country

New outbreaks (1)

Outbreak 1 Live bird markets, GUANGDONG Date of start of the outbreak 10/01/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Livestock market Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds ** 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 Epidemiological comments Samples from live bird markets sent to the National Reference Laboratory for Avian Influenza by the Guangdong veterinary authotities tested positive for a highly pathogenic avian influenza H7N9 virus. Affected live poultry markets have been closed and surveillance is strengthened in the whole province.

Control measures Measures applied Movement control inside the country Screening Disinfection / Disinfestation Quarantine Vaccination permitted (if a vaccine exists) No treatment of affected animals Measures to be applied No other measures

Diagnostic test results Laboratory name and type Species Test Test date Result National Reference Laboratory for Avian Influenza (National laboratory) Birds virus sequencing 10/01/2017 Positive

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

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=22933