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United Kingdom - Low Pathogenic H5N3 bird flu confirmed in commercial poultry flock

Gert van der Hoek

Gert van der Hoek

In Memoriam - Editor, Senior Moderator
Wednesday 11 December 2019 [h=3]Chief Veterinary Officer Dr Robert Huey has urged local poultry farmers to maintain good biosecurity following the confirmation that Low Pathogenic Avian Influenza (LPAI) of the H5 strain has been found in mid Suffolk.[/h]
The strain was found in a flock of broiler breeder chickens at a commercial farm.

Dr Huey commented: “In Northern Ireland the risk to poultry remains low, however Avian flu is a constant threat to all poultry. In the winter months there is always an increasing risk of disease incursion from migrating birds and were it to enter our Northern Ireland flock, it would have a significant impact on our poultry industry, international trade and the wider economy.

“All poultry keepers, including those keeping game birds and pet birds need to act now and maintain good biosecurity at all times in order to reduce the risk of transmission of avian flu to their flocks.
 
Avian influenza (bird flu) identified in Suffolk

Published 10 December 2019


Low pathogenic avian flu of the H5 strain has been confirmed at a commercial chicken farm in Mid Suffolk, on Tuesday 10 December 2019.


All the birds will now be humanely culled and we have put in place a 1km restriction zone around the infected farm to limit the risk of the disease spreading.

The advice from Public Health England (PHE) is that the risk to public health from the virus is very low and the Food Standards Agency has made clear that bird flu does not pose a food safety risk for UK consumers. Thoroughly cooked poultry and poultry products, including eggs, are safe to eat.
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: *, align: left"]Low pathogenic avian influenza (poultry),
United Kingdom[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 11/12/2019 from Dr Christine Middlemiss, Chief Veterinary Officer, DEFRA, Department for Environment,Food and Rural Affairs , London, United Kingdom[/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%"]04/12/2019[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]10/12/2019[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]11/12/2019[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]11/12/2019[/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%"]20/01/2016[/TD]

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

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

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5[/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]
[/TR]
[TR]
[TD]New outbreaks (1)
[/TD]
[/TR]
[TR]
[TD]
Mid Suffolk, England
Date of start of the outbreak04/12/2019
Outbreak statusContinuing (or date resolved not provided)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds27000 0 0
Affected populationFlock of approximately 27,000 (45 weeks in lay) housed broiler breeder chickens.

[TD="align: left"]Outbreak 1 (AIV 2019/01)[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 1
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds27000**0 0
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds**0.00%****

[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
Epidemiological commentsFollowing reports of a drop in egg production, a veterinary inquiry was undertaken and official tests identified the presence of H5 LPAI. Stamping out is underway. Disposal of the birds, cleansing and disinfection are being arranged. Updates will be provided in the weekly reports as further information becomes available.
[/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
  • Screening
  • Traceability
  • Quarantine
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Disinfection
[/TD]
[/TR]
[TR]
[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdshaemagglutination inhibition test (HIT)09/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsintravenous pathogenicity index (IVPI) test Pending
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsneuraminidase inhibition assay Pending
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsnucleotide sequencing10/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsreal-time reverse transcriptase/polymerase chain reaction (RRT-PCR)10/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsvirus isolation Pending
[/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=32614
 
[TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: *, align: left"]Low pathogenic avian influenza (poultry),
United Kingdom[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 27/12/2019 from Dr Christine Middlemiss, Chief Veterinary Officer, DEFRA, Department for Environment,Food and Rural Affairs , London, United Kingdom[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 2[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]04/12/2019[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]10/12/2019[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]27/12/2019[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]27/12/2019[/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%"]20/01/2016[/TD]

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

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

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5N3[/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 (11/12/2019) Follow-up report No. 1 (19/12/2019) Follow-up report No. 2 (27/12/2019) [/TD]
[/TD]
[/TR]
[TR]
[TD]
OutbreaksThere are no new outbreaks in this report
[/TD]
[/TR]
[TR]
[TD]Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological commentsFollowing reports of a drop in egg production, a veterinary inquiry was undertaken and official tests identified the presence of H5N3 LPAI. Stamping out is underway. Culling has been completed. Disposal of the birds is complete and preliminary cleansing and disinfection has been completed and effective as of the 18th of December 2019. Updates will be provided in the weekly reports as further information becomes available. The epidemiological investigation 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
  • Screening
  • Traceability
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Disinfection
  • 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
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdshaemagglutination inhibition test (HIT)09/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsintravenous pathogenicity index (IVPI) test23/12/2019Negative
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsneuraminidase inhibition assay24/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsnucleotide sequencing10/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsreal-time reverse transcriptase/polymerase chain reaction (RRT-PCR)10/12/2019Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)Birdsvirus isolation12/12/2019Positive
[/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=32776
 
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