OIE: High pathogenicity avian influenza viruses (poultry) (infection with H5N2), Poland

Report type: immediate notification
Started: 28 Feb 2022
Confirmed: 2 Mar 2022
Reported: 4 Mar 2022
Reason for notification: new strain in the country
Causal agent: highly pathogenic avian influenza virus
Serotype: H5N2
Nature of diagnosis: clinical, laboratory
This event pertains to a defined zone within the country.

Outbreak location: Rowne, Gtubczyce, Opolskie
Started: 28 Feb 2022
Epidemiological unit: backyard
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 79 / 39 / 39 / 40 / 0 / 0
Affected population: HPAI virus detected in hens, ducks, pigeons

Source of the outbreak(s) or origin of infection: unknown or

Control measures applied in domestic: zoning; traceability; stamping
out; screening; official disposal of carcasses, by-products, and
waste; official destruction of animal products; disinfection; control
of wildlife reservoirs

Diagnostic test results
Laboratory name and type / Species / Outbreaks / Test / Test date /
National Veterinary Research Institute (NVRI) (national laboratory) /
bird/ 1 / real-time reverse transcription polymerase chain reaction
(rRT-PCR) / 2 Mar 2022 / positive