Netherlands - Low Pathogenic H5N2 Avian Flu in Poultry

[Gert van der Hoek]

april 3, 2015

In Milheeze in North Brabant province bird flu.has been detected at a poultry farm It is a mild H5-strain.

Since this form can mutate into a dangerous, highly pathogenic variant, the animals are culled on the farm, according to the European regulations.

The farm has around 12,000 laying hens in three stables with outdoor access. The culling is done by the Dutch Food and Consumer Product Safety Authority.

transport ban

In an area of one kilometer around the holding in East Brabant village a ban on transporting poultry, eggs, poultry manure and used bedding is issued. Within the area is one other poultry farm whic is being investigated.

Mild strains of bird flu have been detected frequently lately, in other parts of the country. Usually it doesn't spread and remains in the affected farm.

[Pathfinder]

Low pathogenic avian influenza (poultry), Netherlands

Information received on 07/04/2015 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 01/04/2015 Date of pre-confirmation of the event 03/04/2015 Report date 07/04/2015 Date submitted to OIE 07/04/2015 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 03/2015 Manifestation of disease Sub-clinical infection Causal agent Low pathogenic avian influenza virus Serotype H5N2 Nature of diagnosis Laboratory (advanced) This event pertains to a defined zone within the country

New outbreaks (1)

Outbreak 1 (LPAI 2015-03) Milheeze, NOORD-BRABANT Date of start of the outbreak 01/04/2015 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 12000 12000 0 Affected population Free range layer hens

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 12000 ** 12000 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds ** ** ** ** *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 A 1 km restriction zone has been established on 3 April 2015. There is another premise in the 1 km zone. This premise has been screened.

Control measures Measures applied Stamping out Movement control inside the country Screening Zoning Vaccination prohibited No treatment of affected animals Measures to be applied No other measures

Diagnostic test results Laboratory name and type Species Test Test date Result Central Veterinary Institute, Lelystad (National laboratory) Birds polymerase chain reaction (PCR) 03/04/2015 Positive

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

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=17476