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2024-3-29 13:54:16


OIE: Highly pathogenic avian influenza (H5), Bulgaria
submited by kickingbird at Feb, 11, 2021 10:13 AM from OIE

Information received on 09/02/2021 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
03/02/2021
Date of confirmation of the event
03/02/2021
Report date
09/02/2021
Date submitted to OIE
09/02/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
10/07/2020
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
New outbreaks (4)

Outbreak 1
Bulgaria, Pleven
Date of start of the outbreak
03/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
99500
1447
1447
98053
0
Outbreak 2
Bulgaria, Pleven
Date of start of the outbreak
05/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
19418
40
0
19378
0
Affected population
As a result of the active surveillance activities following outbreak confirmed on 03.02.2021 a Highly pathogenic avian influenza virus H5 was confirmed by PCR in a Pekin ducks farm.
Outbreak 3
Bulgaria, Pleven
Date of start of the outbreak
05/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
145329
300
0
145029
0
Affected population
As a result of the active surveillance activities following outbreak confirmed on 03.02.2021 a Highly pathogenic avian influenza virus H5 was confirmed by PCR in a Pekin ducks farm.
Outbreak 4
Bulgaria, Pleven
Date of start of the outbreak
08/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
55764
200
200
55564
0
Affected population
Highly pathogenic avian influenza virus H5 was confirmed by PCR in a farm with breeding flock for broilers.
Summary of outbreaks
Total outbreaks: 4
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
320011
1987
1647
318024
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
0.62%
0.51%
82.89%
99.89%
*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
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 (National laboratory)
Birds
polymerase chain reaction (PCR)
03/02/2021
Positive
National reference laboratory (National laboratory)
Birds
polymerase chain reaction (PCR)
05/02/2021
Positive
National reference laboratory (National laboratory)
Birds
polymerase chain reaction (PCR)
08/02/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
See Also: Latest news in those days:

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