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Chile - 1 new outbreak of low pathogenic avian influenza H7N6 in backyard birds, Valparaiso (OIE, February 7, 2017)

Pathfinder

Pathfinder

Editor, Senior Moderator
[TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
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[TD="width: *, align: left"] Low pathogenic avian influenza (poultry),
Chile
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[TD="width: 1%, align: right"] [/TD]
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[TD] [TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
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[TD="class: topbigtabletitle27"]Information received on 07/02/2017 from Dr Jose Ignacio G?mez Meza, Jefe de la Divisi?n de Protecci?n Pecuaria, Servicio Agr?cola y Ganadero (SAG), Ministerio de Agricultura, Santiago, Chile[/TD]
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[/TD]
[/TR]
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[TD] Summary
[TABLE="class: TableFoyers, width: 917"]
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[TD="class: filtrer_th, width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 3[/TD]
[/TR]
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[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]26/12/2016[/TD]
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[TD="class: filtrer_th, width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]06/01/2017[/TD]
[/TR]
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[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]07/02/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]07/02/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]First occurrence of a listed disease in the country[/TD]
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[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Low pathogenic avian influenza virus[/TD]
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[TD="class: filtrer_th, width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N6[/TD]
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[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, 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 (06/01/2017)
Follow-up report No. 1 (18/01/2017)
Follow-up report No. 2 (31/01/2017)
Follow-up report No. 3 (07/02/2017) [/TD]
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[TD] New outbreaks (1)
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[TD] [TABLE="class: TableFoyers, width: 917"]
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[TD="class: filtrer_th ta_left, align: left"]Outbreak 1 (EL Olivo)[/TD]
[TD="class: filtrer_th ta_left"]Quillota-comuna de Nogales, Nogales, VALPARAISO[/TD]
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[TD="class: filtrer_th ta_left"]Date of start of the outbreak[/TD]
[TD]28/01/2017[/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]Backyard[/TD]
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[TD="class: filtrer_th ta_left"]Affected animals[/TD]
[TD] [TABLE="class: TableFoyers, width: 723"]
[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"]425[/TD]
[TD="class: ta_right"]5[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]425[/TD]
[TD="class: ta_right"]0[/TD]
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[/TD]
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[TD="class: filtrer_th ta_left"]Affected population[/TD]
[TD]The susceptible population was mainly chickens, and, to a lesser extent, ducks, geese and turkeys. The five positive animals were chickens.[/TD]
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[TD] [TABLE="class: TableFoyers, width: 917"]
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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]
[TD] [TABLE="class: TableFoyers, width: 744"]
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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"]Destroyed[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]425[/TD]
[TD="class: ta_right"]5[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]425[/TD]
[TD="class: ta_right"]0[/TD]
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[/TD]
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[TD="class: filtrer_th ta_left"]Outbreak statistics[/TD]
[TD] [TABLE="class: TableFoyers, width: 744"]
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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"]1.18%[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]100.00%[/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] Epidemiology
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[TD="class: filtrer_th ta_left"]Source of the outbreak(s) or origin of infection[/TD]
[TD]
  • Unknown or inconclusive
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[TD="class: filtrer_th ta_left"]Epidemiological comments[/TD]
[TD]The finding occurred in a backyard, located within the perifocal area of the 2nd outbreak (El Mel?n). The owner runs a small business specialized in land preparation, excavation and earth-moving works, and load operations and water transport. His equipment is stored within the premises where the positive birds are. The business has been operating in the Las Palmas farm (outbreak 1) since the beginning of the event, and then operated within the area of El Mel?n (outbreak 2). This business represents a strong epidemiological link between both primary outbreaks. Following the new detection, the affected premises were put under quarantine and additional samples were taken from birds. Furthermore, the Farming and Agricultural Service (SAG) decided to pre-emptively destroy the whole bird population in this farm and adjacent farms. To date, the sampling of backyard birds from all farms within the area resulted negative.[/TD]
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[TD] [/TD]
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[TD] Control measures
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[TD="class: filtrer_th ta_left"]Measures applied[/TD]
[TD]
  • Disinfection / Disinfestation
  • Traceability
  • Quarantine
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Control of wildlife reservoirs
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
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[TD="class: filtrer_th ta_left"]Measures to be applied[/TD]
[TD]
  • 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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[TR]
[TD="class: filtrer"]Official Laboratory Lo Aguirre (National laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]agar-gel immunodiffusion (AGID)[/TD]
[TD="class: filtrer"]28/01/2017[/TD]
[TD="class: filtrer cb-centree last"]Positive[/TD]
[/TR]
[TR]
[TD="class: filtrer"]Official Laboratory Lo Aguirre (National laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]real-time PCR[/TD]
[TD="class: filtrer"]02/02/2017[/TD]
[TD="class: filtrer cb-centree last"]Negative[/TD]
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[TD] Future Reporting
[TABLE="class: TableFoyers, width: 917"]
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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=22755
 
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