Highly pathogenic avian influenza,
Bulgaria
Information received on 22/12/2016 from Dr Damyan Iliev, Chief Veterinary Officer & Deputy Executive Director, Bulgarian Food Safety Agency, Ministry of Agriculture and Food, Sofia, Bulgaria
Summary
Report type Immediate notification
Date of start of the event 19/12/2016
Date of confirmation of the event 19/12/2016
Report date 22/12/2016
Date submitted to OIE 22/12/2016
Date event resolved 30/04/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 01/07/2015
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5
Nature of diagnosis Laboratory (basic)
This event pertains to a defined zone within the country
Related reports Immediate notification (22/12/2016)
Follow-up report No. 1 (28/12/2016)
Follow-up report No. 2 (20/02/2017)
Follow-up report No. 3 (24/02/2017)
Follow-up report No. 4 (09/05/2017)
Follow-up report No. 5 (05/06/2017)
New outbreaks (8)
Outbreak 1 Novo selo, Novo sleo, Vidin, VIDIN
Date of start of the outbreak 19/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 25 18 18 7 0
Outbreak 2 Vidin, Vidin, Vidin, VIDIN
Date of start of the outbreak 19/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 148 22 22 126 0
Outbreak 3 Vidin, Vidin, Vidin, VIDIN
Date of start of the outbreak 19/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 105 12 12 93 0
Outbreak 4 Vratsa, Vratsa, Vratsa, VRACA
Date of start of the outbreak 19/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Natural park
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 940 4 0 940 0
Affected population Captive birds (mallard ducks)
Outbreak 5 Manole, Maritsa, Plovdiv, PLOVDIV
Date of start of the outbreak 19/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3150 6 0 3150 0
Outbreak 6 Vodnyantzi, Dimovo, Vidin, VIDIN
Date of start of the outbreak 20/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 16 2 2 14 0
Outbreak 7 Yambol, Elhovo, Yambol, JAMBOL
Date of start of the outbreak 21/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Natural park
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Grey Heron:Ardea cinerea(Ardeidae) 2 2 0 0
Outbreak 8 Doganovo, Elin Pelin, Sofia district, SOFIJA
Date of start of the outbreak 22/12/2016
Outbreak status Resolved (30/04/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 33 19 19 14 0
Summary of outbreaks Total outbreaks: 8
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4417 83 73 4344 0
Grey Heron:Ardea cinerea(Ardeidae) 2 2 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 1.88% 1.65% 87.95% 100.00%
Grey Heron:Ardea cinerea(Ardeidae) ** ** 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
  • Movement control inside the country
  • Screening
  • Quarantine
  • Surveillance outside containment and/or protection zone
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Surveillance within containment and/or protection zone
  • Control of wildlife reservoirs
  • 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 Laboratory for Avian Influenza/Newcastle Disease (Regional Reference Laboratory) Birds real-time PCR 19/12/2016 Positive
National Reference Laboratory for Avian Influenza/Newcastle Disease (Regional Reference Laboratory) Birds real-time PCR 20/12/2016 Positive
National Reference Laboratory for Avian Influenza/Newcastle Disease (Regional Reference Laboratory) Birds real-time PCR 22/12/2016 Positive
National Reference Laboratory for Avian Influenza/Newcastle Disease (Regional Reference Laboratory) Grey Heron real-time PCR 21/12/2016 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations