Highly pathogenic avian influenza,
Information received on 13/03/2019 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 13/03/2019
Date of confirmation of the event 13/03/2019
Report date 13/03/2019
Date submitted to OIE 13/03/2019
Date event resolved 05/04/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 17/12/2018
Manifestation of disease Sub-clinical infection
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 (13/03/2019)
Follow-up report No. 1 (03/04/2019)
Follow-up report No. 2 (07/04/2019)
Follow-up report No. 3 (11/07/2019)
New outbreaks (1)
Outbreak 1 Lisets, Lovech, Lovec
Date of start of the outbreak 13/03/2019
Outbreak status Resolved (20/03/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3200 20 0 3200 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3200 20 0 3200 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.63% 0.00% 0.00% 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
  • Screening
  • Traceability
  • Zoning
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Official disposal of carcasses, by-products and waste
  • Stamping out
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 13/03/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations