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AU: HP H7N7 bird flu in poultry at a free-range egg farm

Shiloh

Shiloh

Editor, Senior Moderator
Source: https://www.bay939.com.au/news/loca...ree-range-egg-farm-tests-positive-to-bird-flu

Local free-range egg farm tests positive to bird flu
Kristie Sullivan / 01 August 2020

A free-range egg farm near Lethbridge has tested positive for bird flu.

The affected property has been quarantined and the birds on the property are being destroyed.

Movement controls are also in place prohibiting the movement of birds, equipment and products within and out of the restricted area until further notice.

Bird flu can affect chickens, ducks, geese, guinea fowl, ostriches, pheasants. quail and turkeys.

The Victorian Department of Health and Human Services (DHHS) says the H7N7 avian influenza virus is not a risk to the public as it rarely affects humans unless there is direct and close contact with sick birds...
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="align: left"]Highly pathogenic avian influenza,
Australia[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 31/07/2020 from Dr Mark Schipp, Chief Veterinary Officer, Department of Agriculture, Water and the Environment, Australian Government, Canberra, Australia[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Immediate notification[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]24/07/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]31/07/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]31/07/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]31/07/2020[/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%"]21/02/2014[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]

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

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N7[/TD]

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

[TD="width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]
[/TD]
[/TR]
[TR]
[TD]New outbreaks (1)[/TD]
[/TR]
[TR]
[TD]
Lethbridge, Victoria
Date of start of the outbreak24/07/2020
Outbreak statusContinuing (or date resolved not provided)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds4350021750166900
Affected populationOne free range premise with two separate sheds. All birds in one shed affected. Birds in the second shed are clinically unaffected.

[TD="align: left"]Outbreak 1[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 1
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds4350021750166900
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds50.00%3.84%7.67%3.84%

[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
  • Contact with wild species
[/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
  • Traceability
  • Quarantine
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Official destruction of animal products
  • Stamping out
  • Disinfection
[/TD]
[/TR]
[TR]
[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
AgriBio (Local laboratory)Birdsreal-time PCR29/07/2020Positive
Australian Centre for Disease Preparedness (OIE Reference Laboratory)Birdsgene sequencing31/07/2020Positive
Australian Centre for Disease Preparedness (OIE Reference Laboratory)Birdsreal-time PCR30/07/2020Positive
[/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/w...reportid=35259
 
Source: https://www.bay939.com.au/news/local-news/119845-second-egg-farm-tests-positive-for-bird-flu


Second egg farm tests positive for bird flu
Kristie Sullivan / 06 August 2020

A second egg farm near Lethbridge has tested positive for avian influenza.

Agriculture Victoria said the farm is within the existing Restricted Area and has been under movement restrictions and regular surveillance which has helped identify and contain the disease.

An expanded Restricted Area that provides a buffer zone around the newly identified farm has been put in place, meaning the movement of poultry, birds, related equipment and products within and out of the designated Control Area of Golden Plains Shire is banned unless a permit has been granted by Agriculture Victoria until further notice...
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="align: left"]Highly pathogenic avian influenza,
Australia[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 07/08/2020 from Dr Mark Schipp, Chief Veterinary Officer, Department of Agriculture, Water and the Environment, Australian Government, Canberra, Australia[/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%"]24/07/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]31/07/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]07/08/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]07/08/2020[/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%"]21/02/2014[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]

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

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N7[/TD]

[TD="width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, Laboratory (basic), Laboratory (advanced), Necropsy[/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 (31/07/2020) Follow-up report No. 1 (07/08/2020) [/TD]
[/TD]
[/TR]
[TR]
[TD]New outbreaks (1)[/TD]
[/TR]
[TR]
[TD]
Lethbridge, Victoria
Date of start of the outbreak05/08/2020
Outbreak statusContinuing (or date resolved not provided)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds35500021151219000
Affected populationMixed free-range, caged and barn laid layer poultry farm. All free range birds housed from 31 July 2020.

[TD="align: left"]Outbreak 1[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 1
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds35500021151219000
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds59.58%0.05%0.09%0.05%

[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
  • Contact with wild species
Epidemiological commentsDepopulation of IP1 is complete. Disposal and decontamination are underway.
[/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
  • Traceability
  • Quarantine
  • Stamping out
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Disinfection
[/TD]
[/TR]
[TR]
[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
AgriBio (Local laboratory)Birdsreal-time PCR05/08/2020Positive
Australian Centre for Disease Preparedness (OIE Reference Laboratory)Birdsreal-time PCR05/08/2020Positive
[/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/w...reportid=35345
 
Source: https://www.dailymail.co.uk/news/article-8645055/Bird-flu-outbreak-FOURTH-farm.html

Bird flu outbreak at a FOURTH farm as authorities rush to contain virus that has affected 450,000 chooks

Almost 450,000 birds have been infected after fourth bird flu outbreak
Four farms have been put into quarantine after the outbreaks were discovered
Health authorities are working to 'depopulate' all the infected poultry
By Adam Mccleery For Daily Mail Australia
Published: 00:09 EDT, 20 August 2020 | Updated: 02:54 EDT, 20 August 2020


Almost half a million birds have been infected with bird flu after outbreaks at four Victorian farms.

The first infections were detected at a farm in Lethbridge, 95km southwest of Melbourne on July 31, followed by outbreaks at two more Lethbridge farms at the beginning of August.

A fourth poultry farm near Bairnsdale, 280km east of Melbourne, was also infected on August 10.

Now around 450,000 birds are thought to be affected as authorities rush to contain the highly contagious disease.

Health authorities have quarantined the four sites and are working to 'depopulate' the affected birds before the end of the week.

Bird flu outbreaks have forced the quarantine of four Victorian farms with close to half a million birds possibly being contaminated (chickens pictured on poultry farm in 2015)

Victoria's Chief Veterinary Officer, Dr Graeme Cooke said two strains of the virus, H7N7 and H5N2 had been detected.

He confirmed that the most viral, the H7N7 strain, was found at two farms in Lethbridge...
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="align: left"]Highly pathogenic avian influenza,
Australia[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 25/08/2020 from Dr Mark Schipp, Chief Veterinary Officer, Department of Agriculture, Water and the Environment, Australian Government, Canberra, Australia[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 4[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]24/07/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]31/07/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]25/08/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]25/08/2020[/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%"]21/02/2014[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]

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

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H7N7[/TD]

[TD="width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, Laboratory (basic), Laboratory (advanced), Necropsy[/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 (31/07/2020) Follow-up report No. 1 (07/08/2020) Follow-up report No. 2 (11/08/2020) Follow-up report No. 3 (18/08/2020) Follow-up report No. 4 (25/08/2020) [/TD]
[/TD]
[/TR]
[TR]
[TD]New outbreaks (1)[/TD]
[/TR]
[TR]
[TD]
Lethbridge, Victoria
Date of start of the outbreak23/08/2020
Outbreak statusContinuing (or date resolved not provided)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds36878 15 0
Affected populationcommercial free-range layer farm inside the Lethbridge restricted area

[TD="align: left"]Outbreak 1[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 1
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds36878**15 0
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds**0.04%****

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

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]

[TD="colspan: 2"]**Not calculated because of missing information[/TD]
[/TD]
[/TR]
[TR]
[TD]Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
  • Contact with wild species
Epidemiological commentsDepopulation and burial on the first affected property is complete. Disinfection is in progress. Depopulation of the second affected property is complete. Off-site disposal is continuing. A third property with no livestock - a composting site with known high risk trace to the second infected property - has confirmed molecular evidence of H7 influenza A and is also under quarantine. A fourth property located within the restricted area was confirmed on 25 August. Depopulation has commenced. Surveillance both within and outside the restricted area is ongoing.
[/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
  • Traceability
  • Quarantine
  • Stamping out
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Disinfection
[/TD]
[/TR]
[TR]
[TD] [/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/w...reportid=35534
 
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