Canada - 1 new outbreak of highly pathogenic avian influenza H5N2 in a turkey breeder commercial farm in Bright, Ontario (OIE, April 28, 2015)

[Pathfinder]

Highly pathogenic avian influenza, Canada

Information received on 28/04/2015 from Dr Martine Dubuc, OIE Delegate for Canada, Chief Food Safety Officer Vice-President, Science Branch, Health Ministry, Canadian Food Inspection Agency, Ottawa, Canada

Summary Report type Follow-up report No. 2 Date of start of the event 03/04/2015 Date of confirmation of the event 05/04/2015 Report date 28/04/2015 Date submitted to OIE 28/04/2015 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 02/2015 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N2 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (08/04/2015) Follow-up report No. 1 (21/04/2015) Follow-up report No. 2 (28/04/2015)

New outbreaks (1)

Outbreak 1 (ONT-2015-NAI-003) Bright, ONTARIO Date of start of the outbreak 22/04/2015 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 7925 5 5 7920 0 Affected population ONT-2015-NAI-003 Turkey breeder commercial farm with four barns. One barn affected. Birds affected are 45 weeks of age.

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 7925 5 5 7920 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 0.06% 0.06% 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 Contact with wild species Epidemiological comments One additional farm with clinical signs has been confirmed as infected with the H5N2 highly pathogenic avian influenza virus (ONT-2015-NAI-003). On 22 April 2015, the Canadian Food Inspection Agency (CFIA) announced the establishment of a second Avian Influenza Control Zone (AICZ) in Ontario to control the movement of poultry, poultry products and equipment in contact with poultry in the area to minimize disease spread. The boundary of this second AICZ covers a 10km radius from the ONT-2015-NAI-002 premises confirmed to be infected with avian influenza. The zone spans across a portion of Oxford County and Waterloo County, Ontario. Infected premises ONT-2015-NAI-003 is located in Oxford County within the second AICZ. All premises located within the AICZ have been placed under quarantine. The CFIA is monitoring these premises closely for any signs of disease. Humane depopulation of all susceptible animals was completed on infected premises ONT-2015-NAI-002 on 20 April 2015 and on infected premises ONT-2015-NAI-003 on 26 April 2015. The process for disposal in all barns has started. All activities on farm are under the direct supervision of the CFIA.

Control measures Measures applied Stamping out Quarantine Movement control inside the country Screening Zoning Vaccination prohibited No treatment of affected animals Measures to be applied Disinfection of infected premises/establishment(s)

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

.../

http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=17602