Switzerland - 17 new outbreaks of highly pathogenic avian influenza H5N8 in wild birds (OIE, November 29, 2016)

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Highly pathogenic avian influenza, Switzerland

Information received on 30/11/2016 from Mr Hans Wyss, Chief Veterinary Officer, Schwarzenburgstrasse 161, Swiss Federal Veterinary Office, LIEBEFELD BERNE, Switzerland

Summary Report type Follow-up report No. 3 Date of start of the event 05/11/2016 Date of confirmation of the event 09/11/2016 Report date 29/11/2016 Date submitted to OIE 30/11/2016 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 02/2008 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N8 Nature of diagnosis Laboratory (basic), Laboratory (advanced), Necropsy This event pertains to a defined zone within the country Related reports Immediate notification (10/11/2016) Follow-up report No. 1 (16/11/2016) Follow-up report No. 2 (22/11/2016) Follow-up report No. 3 (29/11/2016)

New outbreaks (17)

Outbreak 1 (HPAI_2016_1) Lac L?man, Lausanne, Lausanne, VAUD Date of start of the outbreak 19/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 2 (HPAI_2016_1) Lac L?man, Saint-Sulpice, Ouest lausannois, VAUD Date of start of the outbreak 19/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 3 (HPAI_2016_1) Lac L?man, Vevey, Riviera-Pays-d?Enhaut, VAUD Date of start of the outbreak 19/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Herring Gull:Larus argentatus(Laridae) 1 1 0 0

Outbreak 4 (HPAI_2016_1) Lac de Neuchātel, Chevroux, Broye-Vully, VAUD Date of start of the outbreak 21/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Herring Gull:Larus argentatus(Laridae) 2 2 0 0 Mute Swan:Cygnus olor(Anatidae) 1 1 0 0

Outbreak 5 (HPAI_2016_1) Lac L?man, Lausanne, Lausanne, VAUD Date of start of the outbreak 21/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Common Pochard:Aythya ferina(Anatidae) 1 1 0 0 Black-headed Gull:Larus ridibundus(Laridae) 1 1 0 0 Tufted Duck:Aythya fuligula(Anatidae) 2 2 0 0

Outbreak 6 (HPAI_2016_1) Lac L?man, Villeneuve, Aigle, VAUD Date of start of the outbreak 21/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 2 2 0 0

Outbreak 7 (HPAI_2016_1) Rhein (River), Schaffhausen, Schaffhausen, SCHAFFHAUSEN Date of start of the outbreak 22/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Herring Gull:Larus argentatus(Laridae) 1 1 0 0 Black-headed Gull:Larus ridibundus(Laridae) 1 1 0 0 Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 8 (HPAI_2016_1) Rhein (River), Zweidlen, B?lach, ZURICH Date of start of the outbreak 23/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Mute Swan:Cygnus olor(Anatidae) 2 2 0 0

Outbreak 9 (HPAI_2016_1) Lac L?man, Rolle, Nyon, VAUD Date of start of the outbreak 23/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 10 (HPAI_2016_1) Lac de Neuchātel, Neuchātel, Neuchātel, NEUCHATEL Date of start of the outbreak 23/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Great Crested Grebe:Podiceps cristatus(Podicipedidae) 2 2 0 0

Outbreak 11 (HPAI_2016_1) Lac de la Gruyčre, Le Bry, Greyerz, FRIBOURG Date of start of the outbreak 24/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Herring Gull:Larus argentatus(Laridae) 1 1 0 0

Outbreak 12 (HPAI_2016_1) Lac L?man, Villeneuve, Aigle, VAUD Date of start of the outbreak 24/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Little Grebe:Tachybaptus ruficollis(Podicipedidae) 1 1 0 0

Outbreak 13 (HPAI_2016_1) Rhein (River), Birsfelden, Arlesheim, BASEL-LANDSCHAFT Date of start of the outbreak 25/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Mallard:Anas platyrhynchos(Anatidae) 1 1 0 0

Outbreak 14 (HPAI_2016_1) Z?richsee, W?denswil, Horgen, ZURICH Date of start of the outbreak 27/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 15 (HPAI_2016_1) Z?richsee, M?nnedorf, Meilen, ZURICH Date of start of the outbreak 27/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 16 (HPAI_2016_1) Lake Constance, Eschenz, Frauenfeld, THURGAU Date of start of the outbreak 28/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0

Outbreak 17 (HPAI_2016_1) Lake Constance, Ermatingen, Kreuzlingen, THURGAU Date of start of the outbreak 28/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 1 1

Summary of outbreaks Total outbreaks: 17 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Tufted Duck:Aythya fuligula(Anatidae) 12 12 0 0 Herring Gull:Larus argentatus(Laridae) 5 5 0 0 Mute Swan:Cygnus olor(Anatidae) 3 3 0 0 Common Pochard:Aythya ferina(Anatidae) 1 1 0 0 Black-headed Gull:Larus ridibundus(Laridae) 2 2 0 0 Great Crested Grebe:Podiceps cristatus(Podicipedidae) 2 2 0 0 Little Grebe:Tachybaptus ruficollis(Podicipedidae) 1 1 0 0 Mallard:Anas platyrhynchos(Anatidae) 1 1 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Tufted Duck:Aythya fuligula(Anatidae) ** ** 100.00% ** Herring Gull:Larus argentatus(Laridae) ** ** 100.00% ** Mute Swan:Cygnus olor(Anatidae) ** ** 100.00% ** Common Pochard:Aythya ferina(Anatidae) ** ** 100.00% ** Black-headed Gull:Larus ridibundus(Laridae) ** ** 100.00% ** Great Crested Grebe:Podiceps cristatus(Podicipedidae) ** ** 100.00% ** Little Grebe:Tachybaptus ruficollis(Podicipedidae) ** ** 100.00% ** Mallard:Anas platyrhynchos(Anatidae) ** ** 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

Control measures Measures applied Surveillance within containment and/or protection zone 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 National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Black-headed Gull reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Common Pochard reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Great Crested Grebe reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Herring Gull reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Little Grebe reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Mallard reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Mute Swan reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 Positive National Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Tufted Duck reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2016 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=21710