Bulgaria - 1 new outbreak of highly pathogenic avian influenza H5N8 in birds on farm in Stara Zagora, resolved 11-25-2017 (OIE, February 26, 2018)

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Highly pathogenic avian influenza, Bulgaria

Information received on 26/02/2018 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. 3 (Final report) Date of start of the event 17/10/2017 Date of confirmation of the event 17/10/2017 Report date 26/02/2018 Date submitted to OIE 26/02/2018 Date event resolved 31/12/2017 Reason for notification Recurrence of a listed disease Date of previous occurrence 30/04/2017 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N8 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (22/10/2017) Follow-up report No. 1 (14/11/2017) Follow-up report No. 2 (11/02/2018) Follow-up report No. 3 (26/02/2018)

New outbreaks (1)

Outbreak 1 Gita, STARA ZAGORA Date of start of the outbreak 20/11/2017 Outbreak status Resolved (25/11/2017) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 2981 19 19 2962 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 2981 19 19 2962 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 0.64% 0.64% 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 Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone Traceability Quarantine Official disposal of carcasses, by-products and waste Stamping out Control of wildlife reservoirs Zoning Disinfection Process to inactivate the pathogenic agent in products or by-products 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 20/11/2017 Positive

Future Reporting The event is resolved. No more reports will be submitted.

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=26022