Sweden - 3 new outbreaks of highly pathogenic influenza H5N6 in wild birds (OIE, April 26, 2018)

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Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds), Sweden

Information received on 26/04/2018 from Dr Ingrid Eilertz, Chief Veterinary Officer Director and Head, Swedish Board of Agriculture Department for Animal Welfare and Health, Ministry for Rural Affairs, J?nk?ping, Sweden

Summary Report type Follow-up report No. 3 Date of start of the event 11/03/2018 Date of confirmation of the event 15/03/2018 Report date 26/04/2018 Date submitted to OIE 26/04/2018 Reason for notification Recurrence of a listed disease Date of previous occurrence 24/02/2018 Manifestation of disease Clinical disease Causal agent Highly pathogenic influenza A virus Serotype H5N6 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (16/03/2018) Follow-up report No. 1 (26/03/2018) Follow-up report No. 2 (06/04/2018) Follow-up report No. 3 (26/04/2018)

New outbreaks (3)

Outbreak 1 Nogesundsv?gen, R?by, R?by, Brom?lla, Sk?ne L?n Date of start of the outbreak 29/03/2018 Outbreak status Resolved (29/03/2018) Epidemiological unit Village Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Eurasian buzzard (common buzzard):Buteo buteo(Accipitridae) 1 1 0 0 Affected population A Eurasian Buzzard was found sick. It died before arriving at the wild bird rehabilitation center. The dead bird was sent to the National Veterinary Institute for laboratory analysis.

Outbreak 2 Brom?lla, Brom?lla, Brom?lla, Sk?ne L?n Date of start of the outbreak 09/04/2018 Outbreak status Resolved (09/04/2018) Epidemiological unit Village Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered White-tailed Eagle:Haliaeetus albicilla(Accipitridae) 1 1 0 0 Affected population One White-tailed Eagle was found dead and sent to the National Veterinary Institute for laboratory analysis.

Outbreak 3 M?rrum, M?rrum, Karlshamn, Blekinge L?n Date of start of the outbreak 09/04/2018 Outbreak status Resolved (09/04/2018) Epidemiological unit Village Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Northern Goshawk:Accipiter gentilis(Accipitridae) 1 1 0 0 Affected population One Northern Goshawk was found dead and it was sent to the National Veterinary Institute for analysis.

Summary of outbreaks Total outbreaks: 3 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Eurasian buzzard (common buzzard):Buteo buteo(Accipitridae) 1 1 0 0 White-tailed Eagle:Haliaeetus albicilla(Accipitridae) 1 1 0 0 Northern Goshawk:Accipiter gentilis(Accipitridae) 1 1 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Eurasian buzzard (common buzzard):Buteo buteo(Accipitridae) ** ** 100.00% ** White-tailed Eagle:Haliaeetus albicilla(Accipitridae) ** ** 100.00% ** Northern Goshawk:Accipiter gentilis(Accipitridae) ** ** 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 In accordance with the OIE Terrestrial Animal Health Code, Article 10.4.1 point 8, these outbreaks do not change the disease free status of Sweden as they involve wild birds, and therefore do not fall within the OIE definition of poultry.

Control measures Measures applied Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone 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 National Veterinary Institute (National laboratory) Birds real-time PCR 24/04/2018 Positive National Veterinary Institute (National laboratory) Birds virus sequencing 24/04/2018 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=26496