China - 2 new outbreaks of highly pathogenic avian influenza H5N1 in birds in Guizhou and Jiangsu provinces (OIE, June 19, 2015)

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

Information received on 19/06/2015 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. 4 Date of start of the event 12/09/2014 Date of confirmation of the event 15/09/2014 Report date 19/06/2015 Date submitted to OIE 19/06/2015 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)

New outbreaks (2)

Outbreak 1 Wujin, Changzhou, JIANGSU Date of start of the outbreak 07/06/2015 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 2349 2149 1858 491 0 Affected population Ornamental birds

Outbreak 2 Farm, Dushan, Qiannan state, GUIZHOU Date of start of the outbreak 09/06/2015 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 12554 4615 3800 8754 0 Affected population Chicken

Summary of outbreaks Total outbreaks: 2 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 14903 6764 5658 9245 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 45.39% 37.97% 83.65% 100.00% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology Source of the outbreak(s) or origin of infection Unknown or inconclusive Contact with wild species

Control measures Measures applied Control of wildlife reservoirs Disinfection / Disinfestation 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) 15/06/2015 Positive Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (OIE?s Reference Laboratory) Birds virus isolation 15/06/2015 Positive

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

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