Highly pathogenic avian influenza,
United Kingdom
Information received on 03/12/2020 from Dr Christine Middlemiss, Chief Veterinary Officer, DEFRA, Department for Environment,Food and Rural Affairs , London, United Kingdom
Summary
Report type Follow-up report No. 3
Date of start of the event 24/10/2020
Date of confirmation of the event 02/11/2020
Report date 03/12/2020
Date submitted to OIE 03/12/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 06/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (03/11/2020)
Follow-up report No. 1 (10/11/2020)
Follow-up report No. 2 (12/11/2020)
Follow-up report No. 3 (03/12/2020)
Follow-up report No. 4 (11/12/2020)
Follow-up report No. 5 (18/12/2020)
Follow-up report No. 6 (22/12/2020)
Follow-up report No. 7 (31/12/2020)
Follow-up report No. 8 (08/01/2021)
Follow-up report No. 9 (15/01/2021)
New outbreaks (2)
Outbreak 1 (AIV 2020/05) Melton Mowbray, Leicestershire, England
Date of start of the outbreak 18/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 96 37 37 22 0
Chaffinch:Fringilla coelebs(Fringillidae) 18 0 0 18 0
Island Canary:Serinus canaria(Fringillidae) 7 0 0 7 0
Northern Bobwhite:Colinus virginianus(Odontophoridae) 5 0 0 5 0
Indian Peafowl:Pavo cristatus(Phasianidae) 6 0 0 6 0
Blue-and-yellow Macaw:Ara ararauna(Psittacidae) 1 0 0 1 0
Budgerigar:Melopsittacus undulatus(Psittacidae) 12 0 0 12 0
Cockatiel:Nymphicus hollandicus(Psittacidae) 2 0 0 2 0
Black Swan:Cygnus atratus(Anatidae) 1 0 0 1 0
Emu:Dromaius novaehollandiae(Dromaiidae) 2 0 0 2 0
Japanese Quail:Coturnix japonica(Phasianidae) 15 0 0 15 0
Parakeet:Arantiga auricapillus(Psittacidae) 2 0 0 2 0
Hahn Macaw:Diopsittaca nobilis(Psittacidae) 1 0 0 1 0
Silver pheasant:Lophura nycthemera(Phasianidae) 3 0 0 3 0
Affected population Domestic birds affected: 47 chickens, 17 ducks, 8 geese, 4 guinea fowl and 20 turkey. + 1 black swan, 1 blue and gold macaw, 12 budgerigar, 7 canary, 18 finch zebra, 1 Hahn macaw, 2 Parakeet, 6 peacock, 3 silver pheasants, 15 Japanese painted quail, 5 Bob white quails, 2 emus and 2 cockatiels.
Outbreak 2 (AIV 2020/06) Northallerton, Hambleton, England
Date of start of the outbreak 26/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10500 4758 4758 150 0
Affected population Turkey fattening premises
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10596 4795 4795 172 0
Chaffinch:Fringilla coelebs(Fringillidae) 18 0 0 18 0
Island Canary:Serinus canaria(Fringillidae) 7 0 0 7 0
Northern Bobwhite:Colinus virginianus(Odontophoridae) 5 0 0 5 0
Indian Peafowl:Pavo cristatus(Phasianidae) 6 0 0 6 0
Blue-and-yellow Macaw:Ara ararauna(Psittacidae) 1 0 0 1 0
Budgerigar:Melopsittacus undulatus(Psittacidae) 12 0 0 12 0
Cockatiel:Nymphicus hollandicus(Psittacidae) 2 0 0 2 0
Black Swan:Cygnus atratus(Anatidae) 1 0 0 1 0
Emu:Dromaius novaehollandiae(Dromaiidae) 2 0 0 2 0
Japanese Quail:Coturnix japonica(Phasianidae) 15 0 0 15 0
Parakeet:Arantiga auricapillus(Psittacidae) 2 0 0 2 0
Hahn Macaw:Diopsittaca nobilis(Psittacidae) 1 0 0 1 0
Silver pheasant:Lophura nycthemera(Phasianidae) 3 0 0 3 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 45.25% 45.25% 100.00% 46.88%
Chaffinch:Fringilla coelebs(Fringillidae) 0.00% 0.00% - 100.00%
Island Canary:Serinus canaria(Fringillidae) 0.00% 0.00% - 100.00%
Northern Bobwhite:Colinus virginianus(Odontophoridae) 0.00% 0.00% - 100.00%
Indian Peafowl:Pavo cristatus(Phasianidae) 0.00% 0.00% - 100.00%
Blue-and-yellow Macaw:Ara ararauna(Psittacidae) 0.00% 0.00% - 100.00%
Budgerigar:Melopsittacus undulatus(Psittacidae) 0.00% 0.00% - 100.00%
Cockatiel:Nymphicus hollandicus(Psittacidae) 0.00% 0.00% - 100.00%
Black Swan:Cygnus atratus(Anatidae) 0.00% 0.00% - 100.00%
Emu:Dromaius novaehollandiae(Dromaiidae) 0.00% 0.00% - 100.00%
Japanese Quail:Coturnix japonica(Phasianidae) 0.00% 0.00% - 100.00%
Parakeet:Arantiga auricapillus(Psittacidae) 0.00% 0.00% - 100.00%
Hahn Macaw:Diopsittaca nobilis(Psittacidae) 0.00% 0.00% - 100.00%
Silver pheasant:Lophura nycthemera(Phasianidae) 0.00% 0.00% - 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
Epidemiological comments Epidemiological investigation is ongoing.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Disinfection
  • Process to inactivate the pathogenic agent in products or by-products
Diagnostic test results
Laboratory name and type Species Test Test date Result
Weybridge (OIE Reference Laboratory) Birds gene sequencing 23/11/2020 Positive
Weybridge (OIE Reference Laboratory) Birds gene sequencing 29/11/2020 Positive
Weybridge (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 21/11/2020 Positive
Weybridge (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 28/11/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations