Denmark - 1 new outbreak of low pathogenic avian influenza H5N1 in birds in farm, West (OIE, January 30, 2020)

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Low pathogenic avian influenza (poultry), Denmark

Information received on 30/01/2020 from Dr Hanne Larsen, Chief Veterinary Officer, Danish Veterinary and Food Administration, Ministry of Environment and Food , Glostrup, Denmark

Summary Report type Immediate notification Date of start of the event 27/01/2020 Date of confirmation of the event 29/01/2020 Report date 30/01/2020 Date submitted to OIE 30/01/2020 Reason for notification Recurrence of a listed disease Date of previous occurrence 01/07/2019 Manifestation of disease Sub-clinical infection Causal agent Low pathogenic avian influenza virus Serotype H5N1 Nature of diagnosis Laboratory (advanced) This event pertains to the whole country

New outbreaks (1)

Outbreak 1 S?derup, Aalborg, West Date of start of the outbreak 27/01/2020 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 48000 0 0 Affected population On 29 January 2020, low pathogenic avian influenza H5 has been confirmed in a commercial poultry holding with organic laying hens. The layers were tested in accordance with the Danish surveillance programme for avian influenza in poultry. The holding consists of approximately 48.000 organic egg layers. The egg layers at the infected holding will be culled and the carcasses will be disposed by rendering.

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 48000 ** 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds ** 0.00% ** ** *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 The Danish Veterinary and Food Administration has established a restricted zone of 1 km around the holding and are implementing the necessary measures in accordance with Council Directive 2005/94/EC. There are no other commercial poultry holdings within the established restricted zone 1 km around the infected holding. There has been no trade of poultry from the holding to other EU countries or third countries within the last 30 days.

Control measures Measures applied Movement control inside the country Quarantine Zoning Vaccination permitted (if a vaccine exists) No treatment of affected animals Measures to be applied Traceability Official disposal of carcasses, by-products and waste Stamping out Disinfection

Diagnostic test results Laboratory name and type Species Test Test date Result Statens Serum Institut (National laboratory) Birds polymerase chain reaction (PCR) 29/01/2020 Positive Statens Serum Institut (National laboratory) Birds virus sequencing 29/01/2020 Positive

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

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https://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=33109