OIE: High pathogenicity avian influenza viruses (poultry) (infection with H5N1), Philippines

Report type: immediate notification
Started: 10 Feb 2022
Confirmed: 10 Feb 2022
Reported: 25 Mar 2022
Reason for notification: 1st occurrence in a zone or a compartment
Causal agent: highly pathogenic avian influenza virus
Serotype: H5N1
Nature of diagnosis: clinical, laboratory
This event pertains to a defined zone within the country.

Outbreak location 1: Kalandagan, Tacurong City, Sultan Kudarat
Started: 11 Mar 2022
Ended: 12 Mar 2022
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 652 / 20 / 0 / 652 / 0 / 0
Affected population: duck farm

Outbreak location 2: San Antonio, Tacurong City, Sultan Kudarat
Started: 17 Feb 2022
Ended: 6 Mar 2022
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 1376 / 5 / 0 / 1376 / 0 / 0
Affected population: backyard farm

Outbreak location 3: New Carmen, Tacurong City, Sultan Kudarat
Started: 10 Feb 2022
Ended: 4 Mar 2022
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 1021 / 20 / 0 / 1021 / 0 / 0
Affected population: grazing ducks

Outbreak location 4: Baras, Tacurong City, Sultan Kudarat
Started: 5 Mar 2022
Ended: 12 Mar 2022
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 156 / 69 / 69 / 87 / 0 / 0
Affected population: backyard farm (mixed)

Epidemiology
Source of the outbreaks or origin of infection: unknown or
inconclusive

Epidemiological comment: Testing required for local movement.

Control measures applied in domestic: surveillance within the
restricted zone, surveillance outside the restricted zone, stamping
out, screening, quarantine, movement control, disinfection

Control measures to be applied in wild: surveillance outside the
restricted zone; surveillance within the restricted zone

Diagnostic test results
Laboratory name and type / Species / Outbreaks / Test / Test date /
Result
Animal Disease Diagnosis and Reference Laboratory (national
laboratory) / birds / 4 / real-time polymerase chain reaction
(real-time PCR) / 10 Feb to 11 Mar 2022 / positive