OIE: Highly pathogenic avian influenza ,United Kingdom

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	6000	**	338	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	**	5.63%	**	5.63%

* Removed from the susceptible population through death, destruction and/or slaughter;
** Not calculated because of missing information;

Source of the outbreak(s) or origin of infection	Unknown or inconclusive
Epidemiological comments	The epidemiological investigation has started in response to the outbreak and early information indicates that the unit routinely applies high standards of biosecurity and had not moved any birds or eggs from the premises in the preceding week. Updates will be provided in the weekly reports as further information becomes available.

Measures applied	Quarantine Movement control inside the country Screening Zoning Disinfection of infected premises/establishment(s) Vaccination prohibited No treatment of affected animals
Measures to be applied	Stamping out

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 inhibition test (HIT)	16/11/2014	Negative
Birds	intravenous pathogenicity index (IVPI) test		Pending
Birds	nucleotide sequencing	16/11/2014	Positive
Birds	reverse transcription - polymerase chain reaction (RT-PCR)	16/11/2014	Positive

Laboratory name and type

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

Tests and results

Species	Test	Test date	Result
Birds	neuraminidase inhibition assay		Pending

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