Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
United Kingdom
Information received on 09/11/2020 from Dr Christine Middlemiss, Chief Veterinary Officer, DEFRA, Department for Environment,Food and Rural Affairs , London, United Kingdom
Summary
Report type Immediate notification
Date of start of the event 03/11/2020
Date of confirmation of the event 08/11/2020
Report date 09/11/2020
Date submitted to OIE 09/11/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 26/07/2017
Manifestation of disease Sub-clinical infection
Causal agent Highly pathogenic influenza A virus
Serotype H5N8
Nature of diagnosis Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (09/11/2020)
Follow-up report No. 1 (12/11/2020)
Follow-up report No. 2 (18/11/2020)
Follow-up report No. 3 (11/12/2020)
Follow-up report No. 4 (18/12/2020)
Follow-up report No. 5 (23/12/2020)
Follow-up report No. 6 (31/12/2020)
Follow-up report No. 7 (08/01/2021)
Follow-up report No. 8 (15/01/2021)
New outbreaks (1)
Outbreak 1 (WB 2020 01 ) Nr Stroud, Gloucestershire, England
Date of start of the outbreak 03/11/2020
Outbreak status Resolved (03/11/2020)
Epidemiological unit Natural park
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Greylag Goose:Anser anser(Anatidae) 2 2 0 0
Canada Goose:Branta canadensis(Anatidae) 1 1 0 0
Affected population Wild birds
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Greylag Goose:Anser anser(Anatidae) 2 2 0 0
Canada Goose:Branta canadensis(Anatidae) 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Greylag Goose:Anser anser(Anatidae) ** ** 100.00% **
Canada Goose:Branta canadensis(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
Epidemiological comments Ongoing epidemiological Information. As of 9 November: One (1) Greylag goose and one (1) Canada goose found dead were confirmed positive with Highly pathogenic influenza A virus H5N8 on 8th November. The other 3 Canada Geese found dead were sampled but were not positive. Another(1) greylag goose had been collected on the same site on 30th October and was confirmed positive on 9th November.
Control measures
Measures applied
  • 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
Weybridge (OIE Reference Laboratory) Canada Goose gene sequencing 08/11/2020 Positive
Weybridge (OIE Reference Laboratory) Canada Goose real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 08/11/2020 Positive
Weybridge (OIE Reference Laboratory) Greylag Goose gene sequencing 08/11/2020 Positive
Weybridge (OIE Reference Laboratory) Greylag Goose real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 08/11/2020 Positive
Weybridge (OIE Reference Laboratory) Greylag Goose real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/11/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations