China-Qinghai Lake H5N1 Wildbird Dieoff July 2015

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China has reported a H5N1 dieoff of 2361 Great Black-headed Gull's at Qinghai Lake.

Edited July 24, 2015 by Admin

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Death Qinghai H5N1 bird flu virus detected in wild birds

Date: 2015-07-17 14:00 Source:

Since early July, the stone is Hai Hainan prefecture, Qinghai County Republican township of death to the public village Pallas's Gull, as of July 15, 2361 death. July 17, the National Avian Influenza Reference Laboratory detection of highly pathogenic avian influenza virus subtype H5N1 deaths expected from the disease sample Pallas's Gull submission of Qinghai Province. 　　At present, Qinghai veterinary departments have jointly forestry sector in accordance with the emergency plan and control technical specifications, really good job in emergency work. The investigation found no local poultry anomalies. http://www.syj.moa.gov.cn/dwyqdt/yqxx/201507/t20150717_4751170.htm

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

Information received on 20/07/2015 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. 5 Date of start of the event 12/09/2014 Date of confirmation of the event 15/09/2014 Report date 17/07/2015 Date submitted to OIE 20/07/2015 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) Follow-up report No. 5 (17/07/2015) Follow-up report No. 6 (22/07/2015)

New outbreaks (1)

Outbreak 1 Village, Gonghe City, Hainan state, QINGHAI Date of start of the outbreak 09/07/2015 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Great Black-headed Gull:Larus ichthyaetus(Laridae)   2361 2361 0 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Great Black-headed Gull:Larus ichthyaetus(Laridae)   2361 2361 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Great Black-headed Gull:Larus ichthyaetus(Laridae) ** ** 100.00% ** *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 Contact with wild species

Control measures Measures applied Control of wildlife reservoirs Movement control inside the country 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) Great Black-headed Gull reverse transcription - polymerase chain reaction (RT-PCR) 17/07/2015 Positive Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (OIE’s Reference Laboratory) Great Black-headed Gull virus isolation 17/07/2015 Positive

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

Map of outbreak locations

http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?reportid=18151 

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http://www.oie.int/wahis_2/public\..\temp\reports/en_fup_0000018187_20150722_123232.pdf