Highly pathogenic avian influenza,
Bulgaria
Information received on 11/04/2019 from Dr Damyan Iliev, Chief Veterinary Officer & Deputy Executive Director, Bulgarian Food Safety Agency, Ministry of Agriculture and Food, Sofia, Bulgaria
Summary
Report type Follow-up report No. 8
Date of start of the event 03/10/2018
Date of confirmation of the event 03/10/2018
Report date 11/04/2019
Date submitted to OIE 11/04/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 28/09/2018
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Laboratory (basic)
This event pertains to a defined zone within the country
Related reports Immediate notification (08/10/2018)
Follow-up report No. 1 (18/10/2018)
Follow-up report No. 2 (26/10/2018)
Follow-up report No. 3 (04/11/2018)
Follow-up report No. 4 (17/11/2018)
Follow-up report No. 5 (23/12/2018)
Follow-up report No. 6 (21/01/2019)
Follow-up report No. 7 (05/02/2019)
Follow-up report No. 8 (11/04/2019)
Follow-up report No. 9 (30/05/2019)
New outbreaks (3)
Outbreak 1 Krumovo, Plovdiv
Date of start of the outbreak 05/04/2019
Outbreak status Resolved (05/04/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 37 37 37 0 0
Outbreak 2 Asenovgrad, Plovdiv
Date of start of the outbreak 05/04/2019
Outbreak status Resolved (10/04/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 34998 298 298 34700 0
Outbreak 3 Asenovgrad, Plovdiv
Date of start of the outbreak 08/04/2019
Outbreak status Resolved (10/05/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 168752 300 300 168452 0
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 203787 635 635 203152 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.31% 0.31% 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
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Traceability
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Disinfection
  • 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 (National laboratory) Birds real-time PCR 05/04/2019 Positive
National Reference Laboratory for avian influenza/Newcastle disease (National laboratory) Birds real-time PCR 08/04/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations