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Highly pathogenic avian influenza,
Croatia
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Information received on 21/11/2020 from Dr Tatjana Karačić, Assistant Minister, Chief Veterinary Officer, Veterinary Services,
Ministry of Agriculture, Zagreb, Croatia
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Summary
| Report type |
Immediate notification |
| Date of start of the event |
17/11/2020 |
| Date of confirmation of the event |
21/11/2020 |
| Report date |
21/11/2020 |
| Date submitted to OIE |
21/11/2020 |
| Reason for notification |
Recurrence of a listed disease |
| Date of previous occurrence |
07/06/2017 |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Highly pathogenic avian influenza virus |
| Serotype |
H5N8 |
| Nature of diagnosis |
Clinical, Laboratory (basic), Laboratory (advanced), Necropsy |
| This event pertains to |
the whole country |
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| Outbreak 1 |
Delovi, Delovi, Novigrad Podravski, Koprivnicko-Krizevacka |
| Date of start of the outbreak |
17/11/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
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4315 |
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| Summary of outbreaks |
Total outbreaks: 1 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
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** |
4315 |
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| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
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** |
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** |
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| *Removed from the susceptible population through death, destruction and/or slaughter |
| **Not calculated because of missing information |
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Epidemiology
| Source of the outbreak(s) or origin of infection |
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| Epidemiological comments |
Increased mortality was observed on the commercial fattening turkey farm in Delovi (municipality: Novigrad Podravski) in the county: Koprivnica- Križevci with approx. 70 000 animals, on November 17, 2020. Samples were taken and sent to Croatian Veterinary Institute- Poultry Centre in Zagreb. Avian influenza- subtype H5N8 was detected in the pooled samples. On November 21, 2020 HPAI subtype H5N8 is confirmed. Implementation of disease control measures according to the Directive 2005/94/EC as well as epidemiological investigation is still ongoing. |
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Control measures
| Measures applied |
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Stamping out
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Vaccination prohibited
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No treatment of affected animals
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| Measures to be applied |
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Surveillance within containment and/or protection zone
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Official disposal of carcasses, by-products and waste
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Disinfection
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Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Croatian Veterinary Institute - Poultry Center (National laboratory) |
Birds |
real-time PCR |
18/11/2020 |
Positive |
| Croatian Veterinary Institute - Poultry Center (National laboratory) |
Birds |
virus sequencing |
21/11/2020 |
Positive |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
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Map of outbreak locations
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