Highly pathogenic avian influenza,
Canada
Information received on 12/12/2014 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 30/11/2014
Date of confirmation of the event 01/12/2014
Report date 12/12/2014
Date submitted to OIE 12/12/2014
Date event resolved 25/03/2015
Reason for notification Recurrence of a listed disease
Date of previous occurrence 01/2008
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N2
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (03/12/2014)
Follow-up report No. 1 (09/12/2014)
Follow-up report No. 2 (12/12/2014)
Follow-up report No. 3 (19/12/2014)
Follow-up report No. 4 (08/01/2015)
Follow-up report No. 5 (21/04/2015)
Follow-up report No. 6 (05/06/2015)
New outbreaks (4)
Outbreak 1 (BC-2014-NAI-006) Abbotsford, BRITISH COLUMBIA
Date of start of the outbreak 08/12/2014
Outbreak status Resolved (07/02/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 33000 33000 0
Affected population BC-2014-NAI-006 Meat turkey.
Outbreak 2 (BC-2014-NAI-007) Abbotsford, BRITISH COLUMBIA
Date of start of the outbreak 08/12/2014
Outbreak status Resolved (07/03/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 18000 200 200 17800 0
Affected population BC-2014-NAI-007 Chicken broiler breeders.
Outbreak 3 (BC-2014-NAI-008) Abbotsford, BRITISH COLUMBIA
Date of start of the outbreak 09/12/2014
Outbreak status Resolved (09/02/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 8800 55 55 8745 0
Affected population BC-2014-NAI-008 Chicken broiler breeders.
Outbreak 4 (BC-2014-NAI-009) Abbotsford, BRITISH COLUMBIA
Date of start of the outbreak 10/12/2014
Outbreak status Resolved (12/02/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5900 30 30 5870 0
Affected population BC-2014-NAI-009 Chicken broiler breeders.
Summary of outbreaks Total outbreaks: 4
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 65700 285 ** 285 65415 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** ** ** **
*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 Four (4) additional outbreaks were confirmed since the previous report. All outbreaks are located in the same small area in the province of British Columbia. Depopulation of all infected premises is underway, with appropriate cleaning and disinfection, under the supervision of the Canadian Food Inspection Agency (CFIA). The CFIA National Center for Foreign Animal Disease confirms that the novel H5N2 virus detected in BC contains 5 of 8 gene segments from highly pathogenic Eurasian H5N8 virus including the H5 gene and 3 of 8 segments from typical North American viruses including the N2 gene (wild bird origin).
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Disinfection / Disinfestation
  • Quarantine
  • Stamping out
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations