OIE: Highly pathogenic avian influenza (H5N8), United Kingdom

OIE: Highly pathogenic avian influenza (H5N8), United Kingdom
submited by kickingbird at Nov, 6, 2020 9:29 AM from OIE

Information received on 03/11/2020 from Dr Christine Middlemiss, Chief Veterinary Officer, DEFRA, Department for Environment,Food and Rural Affairs , London, United Kingdom

Summary

Report type	Immediate notification
Date of start of the event	24/10/2020
Date of confirmation of the event	02/11/2020
Report date	03/11/2020
Date submitted to OIE	03/11/2020
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	06/2017
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N8
Nature of diagnosis	Laboratory (basic), Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks (1)

Outbreak 1 (AIV 2020/02)

Frodsham, England, England

Date of start of the outbreak

24/10/2020

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Farm

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	13500	230	178	52

Affected population

Broiler breeder rearing birds (10 weeks old)

Summary of outbreaks

Total outbreaks: 1

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	13500	230	178	52

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	1.70%	1.32%	77.39%	**

*Removed from the susceptible population through death, destruction and/or slaughter

**Not calculated because of missing information

Epidemiology

Source of the outbreak(s) or origin of infection	Unknown or inconclusive
Epidemiological comments	Epidemiological investigation is ongoing

Control measures

Measures applied	Movement control inside the country Zoning Vaccination prohibited No treatment of affected animals
Measures to be applied	Surveillance within containment and/or protection zone Official destruction of animal products Official disposal of carcasses, by-products and waste Stamping out Disinfection

Diagnostic test results

Laboratory name and type	Species	Test	Test date	Result
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)	Birds	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	02/11/2020	Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)	Birds	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	02/11/2020	Positive
Animal and Plant Health Agency (APHA), Weybridge (OIE Reference Laboratory)	Birds	reverse transcription - polymerase chain reaction (RT-PCR)	02/11/2020	Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.

See Also:

https://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=36417

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