China - 1 new outbreak of highly pathogenic avian influenza H5N1 in birds in the province of Guizhou (OIE, January 22, 2016)

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

Information received on 22/01/2016 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. 7 Date of start of the event 12/09/2014 Date of confirmation of the event 15/09/2014 Report date 22/01/2016 Date submitted to OIE 22/01/2016 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 01/05/2014 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N1 Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (24/10/2014) Follow-up report No. 1 (09/01/2015) Follow-up report No. 2 (16/01/2015) Follow-up report No. 3 (01/04/2015) Follow-up report No. 4 (19/06/2015) Follow-up report No. 5 (17/07/2015) Follow-up report No. 6 (22/07/2015) Follow-up report No. 7 (22/01/2016)

New outbreaks (1)

Outbreak 1 Farm, Liuzhi district, Liupanshui, GUIZHOU Date of start of the outbreak 11/01/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 35397 5869 5617 29528 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 35397 5869 5617 29528 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 16.58% 15.87% 95.71% 99.29% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology Source of the outbreak(s) or origin of infection Unknown or inconclusive

Control measures Measures applied 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 Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 22/01/2016 Positive Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (OIE Reference Laboratory) Birds virus isolation 22/01/2016 Positive

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

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