OIE: Highly pathogenic avian influenza, Netherlands

Information received on 11/11/2016 from Dr Christianne Bruschke, Chief Veterinary Officer , Ministry of Economic Affairs, Ministry of Economic Affairs, The Hague, Netherlands

Summary

Report type	Immediate notification
Date of start of the event	08/11/2016
Date of confirmation of the event	10/11/2016
Report date	11/11/2016
Date submitted to OIE	11/11/2016
Reason for notification	First occurrence of a listed disease
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus in wild birds
Serotype	H5N8
Nature of diagnosis	Clinical, Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

NOORD-HOLLAND ( Monnickendam )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Great Crested Grebe:Podicipedidae (Podiceps cristatus)		2	2
Tufted Duck:Anatidae (Aythya fuligula)		3	3

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Great Crested Grebe:Podicipedidae (Podiceps cristatus)	**	**	100.00%	**
Tufted Duck:Anatidae (Aythya fuligula)	**	**	100.00%	**

* 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	On November 8th, three tufted ducks (Aythya fuligula) and two Great crested grebes (Podiceps cristatus) were found dead in a wetland area. On November 10th the national reference laboratory confirmed HPAI Virus H5N8 in the samples from the tufted ducks and Great crested grebes. The Netherlands has ordered compulsory confinement of all commercial poultry in The Netherlands.

Control measures

Measures applied	Vaccination prohibited No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Wageningen Bioveterinary Research, Lelystad ( National laboratory )

Tests and results

Species	Test	Test date	Result
Great Crested Grebe	polymerase chain reaction (PCR)	10/11/2016	Positive

Future Reporting

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