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Another H5N8 bird flu case prompting massive chicken cull in Okayama, Japan - OIE

Shiloh

Shiloh

Editor, Senior Moderator
Source: http://www.japantimes.co.jp/news/20...ting-massive-chicken-cull-japan/#.VLhASidpehc


Another bird flu case prompting massive chicken cull in Japan
Kyodo
Jan 16, 2015

OKAYAMA ? The Okayama Prefectural Government said Thursday that it has confirmed the presence of a pathogenic H5 strain of bird flu virus at a chicken farm in the prefecture, the fourth case of avian influenza detected at a poultry operation in Japan this winter.

Local government officials have requested the Self-Defense Forces to dispatch troops to help cull roughly 200,000 birds at the farm in Kasaoka, an operation they plan to begin on Friday and estimate will take four days to complete.

The previous three cases this winter have resulted in the killing of thousands of chickens, ranging from 4,000 to 42,000 per instance...
 
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Japan Guide

Massive chicken cull begins after bird flu confirmed

OKAYAMA, Japan, Jan. 16, Kyodo

Public health workers began a cull of roughly 200,000 chickens Friday morning at a farm in Okayama Prefecture, western Japan, following confirmation that some had been infected with a highly pathogenic H5 strain of bird flu virus.

According to the prefectural government, the cull is expected to take four days, with roughly 50,000 birds killed each day. The dead birds will be incinerated in the operation that also involves Self-Defense Forces personnel and local government staff.

The prefectural government has imposed a ban on the movement of chickens and eggs at six farms within a 3-kilometer radius of the farm in Kasaoka, and 15 other farms in a 10-km radius have been ordered not to ship their products.
 
[TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: 1%"]
oielogosmall.png
[/TD]
[TD="width: *, align: left"] Highly pathogenic avian influenza,
Japan
[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD="class: topbigtabletitle27"]Information received on 16/01/2015 from Dr Toshiro Kawashima, CVO, Animal Health Division, Ministry of Agriculture, Forestry and Fisheries, Tokyo , Japan[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] Summary
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th, width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 10[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]03/11/2014[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of pre-confirmation of the event[/TD]
[TD="width: 30%"]13/11/2014[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]16/01/2015[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]16/01/2015[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Reoccurrence of a listed disease[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]16/04/2014[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Highly pathogenic avian influenza virus[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5N8[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, Laboratory (basic), Laboratory (advanced)[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]the whole country[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left, width: 10%"]Related reports[/TD]
[TD="width: 30%"]Immediate notification (13/11/2014)
Follow-up report No. 1 (21/11/2014)
Follow-up report No. 2 (25/11/2014)
Follow-up report No. 3 (04/12/2014)
Follow-up report No. 4 (16/12/2014)
Follow-up report No. 5 (19/12/2014)
Follow-up report No. 6 (26/12/2014)
Follow-up report No. 7 (29/12/2014)
Follow-up report No. 8 (30/12/2014)
Follow-up report No. 9 (09/01/2015)
Follow-up report No. 10 (16/01/2015) [/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] New outbreaks (1)
[TABLE="class: TableFoyers, width: 918"]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left, align: left"]Outbreak 1[/TD]
[TD="class: filtrer_th ta_left"]Kasaoka-shi, OKAYAMA[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Date of start of the outbreak[/TD]
[TD]15/01/2015[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Outbreak status[/TD]
[TD]Continuing (or date resolved not provided)[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Epidemiological unit[/TD]
[TD]Farm[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Affected animals[/TD]
[TD] [TABLE="class: TableFoyers, width: 605"]
[TR]
[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"]Destroyed[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]200015[/TD]
[TD="class: ta_right"]15[/TD]
[TD="class: ta_right"]15[/TD]
[TD="class: ta_right"]200000[/TD]
[TD="class: ta_right"]0[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Affected population[/TD]
[TD]Poultry (layer)[/TD]
[/TR]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left, align: left"]Summary of outbreaks[/TD]
[TD="class: filtrer_th ta_left"]Total outbreaks: 1[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Total animals affected[/TD]
[TD] [TABLE="class: TableFoyers, width: 744"]
[TR]
[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"]Destroyed[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]200015[/TD]
[TD="class: ta_right"]15[/TD]
[TD="class: ta_right"]15[/TD]
[TD="class: ta_right"]200000[/TD]
[TD="class: ta_right"]0[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Outbreak statistics[/TD]
[TD] [TABLE="class: TableFoyers, width: 744"]
[TR]
[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]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]0.01%[/TD]
[TD="class: ta_right"]0.01%[/TD]
[TD="class: ta_right"]100.00%[/TD]
[TD="class: ta_right"]100.00%[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left, colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
[/TR]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] Epidemiology
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left"]Source of the outbreak(s) or origin of infection[/TD]
[TD]
  • Unknown or inconclusive
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Epidemiological comments[/TD]
[TD]On 15 January 2015, the local veterinary service in Okayama prefecture received a notification from a layer farm on an increase in the number of dead birds. The samples were sent to the laboratory of the local veterinary service centre (Okayama Livestock Hygiene Centre). The samples from dead birds were influenza A virus positive by antigen-capture kits. On the same day, the centre started RT-PCR test and confirmed that the subtype was H5. Stamping-out policy is applied to the affected farm. Destruction of all the susceptible birds in the affected farm (approx. 200,000 birds) is ongoing. Movement restrictions are imposed on the farms within the radius of 3km of the affected farm. Shipment restrictions are imposed on the farms within the radius of 3-10km of the affected farm. The pathogenicity and the NA subtype have not yet been identified and are going to be determined by the National Institute of Animal Health (NIAH). Follow-up information on the second outbreak in poultry in Miyazaki reported in the follow-up report No. 7: On 13 January 2015, shipment restriction (3-10km radius around the affected farm) was lifted since the second confirmation test of the farms within the movement restriction zone proved freedom from avian influenza virus. The confirmation test used clinical inspection, serum antibody test and virus isolation and obtained negative results in all the tests. Follow-up information on the outbreak in poultry in Yamaguchi reported in the follow-up report No.8: On 16 January 2015, shipment restriction (3-10km radius around the affected farm) was lifted since the second confirmation test of the farms within the movement restriction zone proved freedom from avian influenza virus. The confirmation test used clinical inspection, serum antibody test and virus isolation and obtained negative results in all the tests.[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[TD] Control measures
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left"]Measures applied[/TD]
[TD]
  • Control of wildlife reservoirs
  • Stamping out
  • Quarantine
  • Movement control inside the country
  • Screening
  • Disinfection of infected premises/establishment(s)
  • Vaccination prohibited
  • No treatment of affected animals
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Measures to be applied[/TD]
[TD]
  • No other measures
[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] Diagnostic test results
[TABLE="class: TableFoyers, width: 917"]
[TR]
[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]
[/TR]
[TR]
[TD="class: filtrer"]Okayama Livestock Hygiene Centre (Local laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]reverse transcription - polymerase chain reaction (RT-PCR)[/TD]
[TD="class: filtrer"]15/01/2015[/TD]
[TD="class: filtrer cb-centree last"]Positive[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] Future Reporting
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer"]The event is continuing. Weekly follow-up reports will be submitted.[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]
Map of outbreak locations
​
[/TD]
[/TR]
[/TABLE]
 
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