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Chile - Outbreaks of low pathogenic avian influenza H7N6 in birds in farms in Valparaiso

Pathfinder

Pathfinder

Editor, Senior Moderator
[TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: *, align: left"] Low pathogenic avian influenza (poultry),
Chile
[/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 05/09/2019 from Dr Oscar Eduardo Videla P?rez, Jefe de Divisi?n de Protecci?n Pecuaria, Servicio Agr?cola y Ganadero, Ministerio de Agricultura, Santiago, Chile[/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%"]Immediate notification[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]27/08/2019[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]02/09/2019[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]04/09/2019[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]05/09/2019[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Recurrence of a listed disease[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]08/03/2017[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Sub-clinical infection[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Low pathogenic avian influenza virus[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Laboratory (advanced)[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/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"]El Peumo, Los Nogales, Valparaiso[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Date of start of the outbreak[/TD]
[TD]27/08/2019[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Outbreak status[/TD]
[TD]Resolved (04/09/2019)[/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: 775"]
[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"]Killed and disposed of[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]67500[/TD]
[TD="class: ta_right"]13000[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]67500[/TD]
[TD="class: ta_right"]0[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Affected population[/TD]
[TD]Six-week old fattening turkeys. Positive results were obtained from a routine sampling internal to the company, dated August 27th, prior to a movement towards the final fattening site; consequently, there were no bird movements towards another site. On August 28th, the company in question notified a positive result to PCR test (type-A matrix). On the same day, the Service for Agriculture and Livestock (SAG) performed swabbing and serum sampling. On August 29th, serum samples gave negative results to agar-gel immunodiffusion tests, positive results to PCR (type-A matrix) and negative results to H7 and H5 PCR tests. Virus sequencing, dated September 2nd, gave a similar result to a low pathogenic H7 virus, discovered in wild birds in 2016. Virus samples will be sent to the OIE Reference Laboratory. No clinical sign was observed in the animals. All susceptible animals were killed and buried on the same farm, on September 3rd and 4th.[/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: 745"]
[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"]Killed and disposed of[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]67500[/TD]
[TD="class: ta_right"]13000[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]67500[/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: 745"]
[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"]19.26%[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]0.00%[/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]A one-kilometer restriction zone was established around the affected farm as well as a two-kilometers surveillance zone, around the first one, within which active surveillance and epidemiological investigation are ongoing, in accordance with the provisions of the OIE Code.[/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]
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Stamping out
  • Zoning
  • Disinfection
  • 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"]Lo Aguirre Laboratory (National laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]virus sequencing[/TD]
[TD="class: filtrer"]02/09/2019[/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]
[/TABLE]

...
https://www.oie.int/wahis_2/public/...?page_refer=MapFullEventReport&reportid=31653
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: *, align: left"]Low pathogenic avian influenza (poultry),
Chile[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 14/09/2019 from Dr Oscar Eduardo Videla P?rez, Jefe de Divisi?n de Protecci?n Pecuaria, Servicio Agr?cola y Ganadero, Ministerio de Agricultura, Santiago, Chile[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 1[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]27/08/2019[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]02/09/2019[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]13/09/2019[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]14/09/2019[/TD]

[TD="width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Recurrence of a listed disease[/TD]

[TD="width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]08/03/2017[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Sub-clinical infection[/TD]

[TD="width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Low pathogenic avian influenza virus[/TD]

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N6[/TD]

[TD="width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Laboratory (advanced)[/TD]

[TD="width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]

[TD="width: 10%"]Related reports[/TD]
[TD="width: 30%"] Immediate notification (04/09/2019) Follow-up report No. 1 (13/09/2019) Follow-up report No. 2 (27/09/2019) Follow-up report No. 3 (17/10/2019) [/TD]
[/TD]
[/TR]
[TR]
[TD]New outbreaks (1)
[/TD]
[/TR]
[TR]
[TD]
Santa Ana, Los Nogales, Valparaiso
Date of start of the outbreak10/09/2019
Outbreak statusResolved (12/09/2019)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds3935034610039350
Affected population15-week-old fattening turkeys belonging to the same company as the first outbreak. Controlled slaughter is carried out in a slaughterhouse.

[TD="align: left"]Outbreak 1[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 1
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds3935034610039350
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds8.80%0.00%0.00%100.00%

[TD="align: left"]Summary of outbreaks[/TD]

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
[/TD]
[/TR]
[TR]
[TD]Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological commentsA one-kilometer restriction zone was established around the affected farm as well as a one-kilometer surveillance zone around the first one, within which active surveillance and epidemiological investigation are ongoing, in accordance with the provisions of the OIE Code.
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[TD]Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Zoning
  • Disinfection
  • Slaughter
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
[/TD]
[/TR]
[TR]
[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
Lo Aguirre Laboratory (National laboratory)Birdsvirus sequencing12/09/2019Positive
[/TD]
[/TR]
[TR]
[TD]Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
[/TD]
[/TR]
[/TABLE]
...

https://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?reportid=31727
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: *, align: left"]Low pathogenic avian influenza (poultry),
Chile[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 17/10/2019 from Dr Oscar Eduardo Videla P?rez, Jefe de Divisi?n de Protecci?n Pecuaria, Servicio Agr?cola y Ganadero, Ministerio de Agricultura, Santiago, Chile[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 3[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]27/08/2019[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]02/09/2019[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]17/10/2019[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]17/10/2019[/TD]

[TD="width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Recurrence of a listed disease[/TD]

[TD="width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]08/03/2017[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Sub-clinical infection[/TD]

[TD="width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Low pathogenic avian influenza virus[/TD]

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N6[/TD]

[TD="width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Laboratory (advanced)[/TD]

[TD="width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]

[TD="width: 10%"]Related reports[/TD]
[TD="width: 30%"] Immediate notification (04/09/2019) Follow-up report No. 1 (13/09/2019) Follow-up report No. 2 (27/09/2019) Follow-up report No. 3 (17/10/2019) [/TD]
[/TD]
[/TR]
[TR]
[TD]New outbreaks (2)
[/TD]
[/TR]
[TR]
[TD]
Los Tilos, Hijuelas, Valparaiso
Date of start of the outbreak10/10/2019
Outbreak statusResolved (16/10/2019)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds3915900039159
Affected populationSixteen-week-old fattening turkeys. Positive results were obtained from sampling by the company prior to shipment to slaughterhouse on 10th October. The birds were slaughtered on Tuesday 15th and Wednesday 16th.

[TD="align: left"]Outbreak 1[/TD]
[/TD]
[/TR]
[TR]
[TD]
Romeral, Hijuelas, Valparaiso
Date of start of the outbreak12/10/2019
Outbreak statusContinuing (or date resolved not provided)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds4002900040029
Affected populationFifteen-week-old turkeys. Positive sampling during active surveillance carried out by the company due to the outbreak in Los Tilos. Birds sent to slaughterhouse Thursday 17th and Friday 18th October.

[TD="align: left"]Outbreak 2[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 2
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds7918800079188
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds0.00%0.00%**100.00%

[TD="align: left"]Summary of outbreaks[/TD]

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
[/TD]
[/TR]
[TR]
[TD]Epidemiology
Source of the outbreak(s) or origin of infection
  • Fomites (humans, vehicles, feed, etc.)
Epidemiological commentsA one-kilometer restriction zone was established around the affected farm as well as a one-kilometer surveillance zone, around the first one, within which active surveillance and epidemiological investigation are ongoing, in accordance with the provisions of the OIE Code. Additional biosecurity measures are taken to contain the outbreak. Negative serum samples in both outbreaks. Each establishment had been sampled four times, and tested through PCR and serum, within the framework of the current outbreak, with negative results.
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[TD]Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Zoning
  • Disinfection
  • Slaughter
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
[/TD]
[/TR]
[TR]
[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
Lo Aguirre (National laboratory)Birdsreal-time reverse transcriptase/polymerase chain reaction (RRT-PCR)14/10/2019Positive
Lo Aguirre (National laboratory)Birdsvirus sequencing17/10/2019Positive
[/TD]
[/TR]
[TR]
[TD]Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
[/TD]
[/TR]
[/TABLE]


...
https://www.oie.int/wahis_2/public/...?page_refer=MapFullEventReport&reportid=32141
 
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