Highly pathogenic avian influenza,
Information received on 08/03/2018 from Dr Damyan Iliev, Chief Veterinary Officer & Deputy Executive Director, Bulgarian Food Safety Agency, Ministry of Agriculture and Food, Sofia, Bulgaria
Report type Immediate notification
Date of start of the event 02/03/2018
Date of confirmation of the event 02/03/2018
Report date 08/03/2018
Date submitted to OIE 08/03/2018
Date event resolved 17/08/2018
Reason for notification First occurrence of a listed disease
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (08/03/2018)
Follow-up report No. 1 (05/04/2018)
Follow-up report No. 2 (10/06/2018)
Follow-up report No. 3 (24/06/2018)
Follow-up report No. 4 (17/07/2018)
Follow-up report No. 5 (17/08/2018)
New outbreaks (1)
Outbreak 1 General Toshevo, Dobric
Date of start of the outbreak 02/03/2018
Outbreak status Resolved (10/04/2018)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 13900 3500 3500 10400 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 13900 3500 3500 10400 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 25.18% 25.18% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance within containment and/or protection zone
  • Screening
  • Traceability
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Control of wildlife reservoirs
  • 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 and Newcastle disease (National laboratory) Birds real-time PCR 02/03/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations