OIE: Highly pathogenic avian influenza ,United Kingdom

Information received on 13/07/2015 from Dr Nigel Gibbens, Chief Veterinary Officer, Department for Environment, Food and Rural Affairs, Department for Environment, Food and Rural Affairs, LONDON, United Kingdom

Summary

Report type	Immediate notification
Date of start of the event	06/07/2015
Date of confirmation of the event	12/07/2015
Report date	13/07/2015
Date submitted to OIE	14/07/2015
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	21/11/2014
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H7N7
Nature of diagnosis	Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

ENGLAND ( Goosnargh, Lancashire, Preston )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	170000	36000	36000	88000	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	21.18%	21.18%	100.00%	72.94%

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

Epidemiology

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

Control measures

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

Diagnostic test results

Laboratory name and type

Animal and Plant Health Agency (APHA), Weybridge ( OIE’s Reference Laboratory )

Tests and results

Species	Test	Test date	Result
Birds	haemagglutination (HA) test	12/07/2015	Positive
Birds	haemagglutination inhibition test (HIT)	10/07/2015	Positive
Birds	intravenous pathogenicity index (IVPI) test		Pending
Birds	neuraminidase inhibition assay	12/07/2015	Positive
Birds	nucleotide sequencing	12/07/2015	Positive
Birds	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	10/07/2015	Positive
Birds	virus isolation	12/07/2015	Positive

Future Reporting

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