China - 1 new outbreak of highly pathogenic avian influenza H7N9 in birds on farm, Yulin City, Yuyang District, Shaanxi (OIE, June 1, 2017)

[Pathfinder]

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[TD="width: *, align: left"] Highly pathogenic avian influenza,
China (People's Rep. of)
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[TD="class: topbigtabletitle27"]Information received on 02/06/2017 from Dr Zhang Zhongqui, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)[/TD]
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[TD] Summary
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[TD="class: filtrer_th, width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 3[/TD]
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[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]19/03/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]24/03/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]01/06/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]02/06/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]New strain of a listed disease[/TD]
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[TD="class: filtrer_th, width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]
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[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Highly pathogenic avian influenza virus[/TD]
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[TD="class: filtrer_th, width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N9[/TD]
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[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, Laboratory (basic), Laboratory (advanced)[/TD]
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[TD="class: filtrer_th, width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]
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[TD="class: filtrer_th ta_left, width: 10%"]Related reports[/TD]
[TD="width: 30%"]Immediate notification (24/03/2017)
Follow-up report No. 1 (12/05/2017)
Follow-up report No. 2 (24/05/2017)
Follow-up report No. 3 (01/06/2017) [/TD]
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[TD] New outbreaks (1)
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[TD="class: filtrer_th ta_left, align: left"]Outbreak 1[/TD]
[TD="class: filtrer_th ta_left"]Yulin City, Yuyang District, SHAANXI[/TD]
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[TD="class: filtrer_th ta_left"]Date of start of the outbreak[/TD]
[TD]23/05/2017[/TD]
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[TD="class: filtrer_th ta_left"]Outbreak status[/TD]
[TD]Continuing (or date resolved not provided)[/TD]
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[TD="class: filtrer_th ta_left"]Epidemiological unit[/TD]
[TD]Farm[/TD]
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[TD="class: filtrer_th ta_left"]Affected animals[/TD]
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[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Susceptible[/TD]
[TD="class: filtrer_th ta_center last"]Cases[/TD]
[TD="class: filtrer_th ta_center last"]Deaths[/TD]
[TD="class: filtrer_th ta_center last"]Killed and disposed of[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
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[TD]Birds[/TD]
[TD="class: ta_right"]45000[/TD]
[TD="class: ta_right"]31700[/TD]
[TD="class: ta_right"]22000[/TD]
[TD="class: ta_right"]23000[/TD]
[TD="class: ta_right"] [/TD]
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[TD="class: filtrer_th ta_left"]Affected population[/TD]
[TD]The outbreak was observed in local layer farm by active surveillance.[/TD]
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[TD="class: filtrer_th ta_left, align: left"]Summary of outbreaks[/TD]
[TD="class: filtrer_th ta_left"]Total outbreaks: 1[/TD]
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[TD="class: filtrer_th ta_left"]Total animals affected[/TD]
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[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Susceptible[/TD]
[TD="class: filtrer_th ta_center last"]Cases[/TD]
[TD="class: filtrer_th ta_center last"]Deaths[/TD]
[TD="class: filtrer_th ta_center last"]Killed and disposed of[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
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[TD]Birds[/TD]
[TD="class: ta_right"]45000[/TD]
[TD="class: ta_right"]31700[/TD]
[TD="class: ta_right"]22000[/TD]
[TD="class: ta_right"]23000[/TD]
[TD="class: ta_right"] [/TD]
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[TD="class: filtrer_th ta_left"]Outbreak statistics[/TD]
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[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Apparent morbidity rate[/TD]
[TD="class: filtrer_th ta_center last"]Apparent mortality rate[/TD]
[TD="class: filtrer_th ta_center last"]Apparent case fatality rate[/TD]
[TD="class: filtrer_th ta_center last"]Proportion susceptible animals lost*[/TD]
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[TD]Birds[/TD]
[TD="class: ta_right"]70.44%[/TD]
[TD="class: ta_right"]48.89%[/TD]
[TD="class: ta_right"]69.40%[/TD]
[TD="class: ta_right"]**[/TD]
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[TD="class: filtrer_th ta_left, colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
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[TD="class: filtrer_th ta_left, colspan: 2"]**Not calculated because of missing information[/TD]
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[TD] Epidemiology
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[TD="class: filtrer_th ta_left"]Source of the outbreak(s) or origin of infection[/TD]
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• Unknown or inconclusive

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[TD] Control measures
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[TD="class: filtrer_th ta_left"]Measures applied[/TD]
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• Movement control inside the country
• Screening
• Quarantine
• Official disposal of carcasses, by-products and waste
• Stamping out
• Disinfection
• Vaccination permitted (if a vaccine exists)
• No treatment of affected animals

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[TD="class: filtrer_th ta_left"]Measures to be applied[/TD]
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• No other measures

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[TD] Diagnostic test results
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[TD="class: filtrer_th ta_left"]Laboratory name and type[/TD]
[TD="class: filtrer_th ta_left"]Species[/TD]
[TD="class: filtrer_th ta_left"]Test[/TD]
[TD="class: filtrer_th ta_left"]Test date[/TD]
[TD="class: filtrer_th ta_left last"]Result[/TD]
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[TD="class: filtrer"]Harbin National Reference Laboratory for Avian Influenza (OIE Reference Laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]reverse transcription - polymerase chain reaction (RT-PCR)[/TD]
[TD="class: filtrer"]31/05/2017[/TD]
[TD="class: filtrer cb-centree last"]Positive[/TD]
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[TD="class: filtrer"]Harbin National Reference Laboratory for Avian Influenza (OIE Reference Laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]virus sequencing[/TD]
[TD="class: filtrer"]01/06/2017[/TD]
[TD="class: filtrer cb-centree last"]Positive[/TD]
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[TD] Future Reporting
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[TD="class: filtrer"]The event is continuing. Weekly follow-up reports will be submitted.[/TD]
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...
http://www.oie.int/wahis_2/public/w...?page_refer=MapFullEventReport&reportid=23926

 

[Miyamoto Masakazu]

After Hebei province, Henan province and Tianjin city, this is the Fourth Outbreak among birds:

Please note that the Yuyang district of Yulin city reported the city's first human H7N9 case recently though they says the inner Mongolian case got sick outside the province. I am very much interested in this incidence. Is there any contact with the Mongolian case or not?: LOL

China: H7N9 Outbreak in Yuyang District of Yulin City in Shaanxi Province

On May 23, Veterinary Department of Yuyang district in Yulin city, Shaanxi province, during their monitoring, found suspicious bird flu symptoms in some chicken-breeding-farms. 22,000 chickens got ill, and died in this incidence.
On May 26, Shaanxi provincial Center for Animal Disease Prevention and Control diagnosed it suspicious avian flu outbreak.
May 31, 2017, after National Avian Influenza Reference Laboratory?s confirmation, this was diagnosed as the outbreak of H7N9 avian flu.
After this, the local authorities in accordance with the requirements on the relevant prevention/control plans and technical requirements, developed law-based prevention/control, scientific prevention/control effectively. They have already culled 23,000 chickens and made them harmless.
At present, the avian flu is effectively controlled.

Source(Ministry of Agriculture):
http://www.syj.moa.gov.cn/dwyqdt/jczt/201706/t20170601_5651411.htm

<<Machine T.>>
China: Yushu City, Shaanxi Province, Yuyang District, a poultry H7N9 flu outbreak


May 23, Yulin City, Shaanxi Province, Yuyang District, veterinary departments in the monitoring found a farm breeding chickens suspected bird flu symptoms, the incidence of 22,000 deaths. May 26, Shaanxi Province, animal disease prevention and control center diagnosed as suspected avian influenza epidemic. May 31, by the National Avian Influenza reference laboratory confirmed the outbreak for the H7N9 flu epidemic. After the epidemic, the local according to the relevant plans and control technical requirements, adhere to the law prevention and control, scientific prevention and control, and effectively do the epidemic disposal work, has been culling and harmless treatment of 23,000 poultry. At present, the epidemic has been effectively controlled.