OIE: Highly pathogenic avian influenza, Netherlands

Information received on 27/02/2018 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	24/02/2018
Date of confirmation of the event	26/02/2018
Report date	27/02/2018
Date submitted to OIE	27/02/2018
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	08/12/2017
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N6
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

GRONINGEN ( Olderkerk )

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	37866	**	230	37636	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	**	0.61%	**	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 25 February 2018, a 3 km surveillance zone and a 10 km protection zone have been established. In the 3 km zone there are three other premises. All susceptible animals on the infected premises have been killed. All premises in the 3 km zone have been screened. All samples of the screened premises tested negative. This H5N6 subtype is a reassortment linked to H5N8 and not the Asian zoonotic H5N6.

Control measures

Measures applied	Movement control inside the country Screening Stamping out Control of wildlife reservoirs Zoning Disinfection 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