Netherlands - 2 new outbreaks of highly pathogenic avian influenza H5N8 in birds in farms, Overijssel and Friesland (OIE, December 19, 2016)

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Highly pathogenic avian influenza, Netherlands

Information received on 20/12/2016 from Dr Christianne Bruschke, Chief Veterinary Officer , Ministry of Economic Affairs, Ministry of Economic Affairs, The Hague, Netherlands

Summary Report type Follow-up report No. 3 Date of start of the event 25/11/2016 Date of confirmation of the event 26/11/2016 Report date 19/12/2016 Date submitted to OIE 20/12/2016 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 04/2015 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N8 Nature of diagnosis Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (28/11/2016) Follow-up report No. 1 (05/12/2016) Follow-up report No. 2 (14/12/2016) Follow-up report No. 3 (19/12/2016)

New outbreaks (2)

Outbreak 1 (HPAI 2016/5 P) Kamperveen, OVERIJSSEL Date of start of the outbreak 16/12/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 13989 1000 1000 12989 0 Affected population Fattening Ducks

Outbreak 2 (HPAI 2016/6 P) Hiaure, FRIESLAND Date of start of the outbreak 17/12/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 28491 10 10 28481 0 Affected population Laying hens

Summary of outbreaks Total outbreaks: 2 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 42480 1010 1010 41470 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 2.38% 2.38% 100.00% 100.00% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology Source of the outbreak(s) or origin of infection Unknown or inconclusive Epidemiological comments Kamperveen: On 17 December 2016, a 3-km surveillance and a 10-km protection zones have been established. In the 3 km zone there are four 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 were tested negative. Hiaure: On 17 December 2016, a 3-km surveillance and a 10-km protection zones have been established. In the 3-km zone there is one other premise. 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 were tested negative.

Control measures Measures applied Movement control inside the country Screening Disinfection / Disinfestation Stamping out Control of wildlife reservoirs 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 Wageningen Bioveterinary Research, Lelystad (National laboratory) Birds polymerase chain reaction (PCR) 17/12/2016 Positive Wageningen Bioveterinary Research, Lelystad (National laboratory) Birds polymerase chain reaction (PCR) 18/12/2016 Positive

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

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