OIE: Highly pathogenic avian influenza (H5N8), Hungary

Information received on 11/01/2021 from Dr Lajos Bognár, Deputy State Secretary Chief Veterinary Officer, Food Chain Safety Department, Ministry of Agriculture, Budapest, Hungary
Summary
Report type
Immediate notification
Date of start of the event
04/01/2021
Date of confirmation of the event
06/01/2021
Report date
11/01/2021
Date submitted to OIE
11/01/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
08/06/2020
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N8
Nature of diagnosis
Laboratory (advanced)
This event pertains to
a defined zone within the country
New outbreaks (2)

Outbreak 1
ács, Komarom-Esztergom
Date of start of the outbreak
04/01/2021
Outbreak status
Resolved (06/01/2021)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
47596

150
47446
0
Affected population
Fattening turkeys
Outbreak 2
ács, Komarom-Esztergom
Date of start of the outbreak
04/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
36976


36976
0
Affected population
Fattening turkeys
Summary of outbreaks
Total outbreaks: 2
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
84572
**
150
84422
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
**
**
**
**
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
Unknown or inconclusive
Epidemiological comments
In the first affected holding, 47 596 turkeys have been kept in 12 pens. In one of these pens, where 3 900 9-week-old turkeys were kept, on the 2nd and 3rd of January, a drop in feed and water intake, and on the 4th of January, increased mortality rate and watery diarrhea have been observed. In the other holding 36 976 turkeys were kept. On the 4th of January in this holding, the drop in feed and water intake has been observed. From the two holdings, samples were taken and sent to the National Reference Laboratory (NRL) on the 4th of January. The highly pathogenic avian influenza H5N8 strain was confirmed on the 6th of January. The epidemiological investigation is ongoing. The most likely source of infection is wild birds. The virus isolation and the phylogenetic examination are ongoing.

Control measures
Measures applied
Movement control inside the country
Surveillance within containment and/or protection zone
Traceability
Official disposal of carcasses, by-products and waste
Stamping out
Zoning
Vaccination prohibited
No treatment of affected animals
Measures to be applied
Disinfection
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
Veterinary Diagnostic Directorate (National laboratory)
Birds
nucleotide sequencing
06/01/2021
Positive
Veterinary Diagnostic Directorate (National laboratory)
Birds
real-time PCR
06/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.