Philippines - 1 new outbreak of highly pathogenic avian influenza H5N6 in birds in farm, San Luis, Pampanga (OIE, July 29, 2020)

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Highly pathogenic avian influenza, Philippines

Information received on 29/07/2020 from Dr Ronnie Domingo, Officer-In-Charge, Chief Veterinary Officer, Bureau of Animal Industry, Department of Agriculture, Manila, Philippines

Summary Report type Immediate notification Date of start of the event 06/07/2020 Date of confirmation of the event 10/07/2020 Report date 29/07/2020 Date submitted to OIE 29/07/2020 Reason for notification Recurrence of a listed disease Date of previous occurrence 09/03/2018 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N6 Nature of diagnosis Clinical, Laboratory (advanced), Necropsy This event pertains to a defined zone within the country

New outbreaks (1)

Outbreak 1 San Carlos, San Carlos, San Luis, Pampanga Date of start of the outbreak 06/07/2020 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 39161 475 460 38701 0 Affected population Commercial layer poultry farm. Signs observed in 2 buildings were sudden drop in egg production, bluish discoloration of the comb, white nasal discharge, death within 12 hours at the onset of clinical signs. Stamping out procedures were conducted on July 14 and completed in July 17, 2020.

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 39161 475 460 38701 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 1.21% 1.17% 96.84% 100.00% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology Source of the outbreak(s) or origin of infection Contact with wild species Epidemiological comments Presence of wild birds in the rice field beside the layer farm.

Control measures Measures applied Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone Quarantine Stamping out Disinfection Vaccination prohibited No treatment of affected animals Measures to be applied Traceability

Diagnostic test results Laboratory name and type Species Test Test date Result Animal Disease Diagnosis and Reference Laboratory (National laboratory) Birds real-time PCR 10/07/2020 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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https://www.oie.int/wahis_2/public/w...reportid=35225