Taiwan - 2 new outbreaks of highly pathogenic avian influenza H5N8 in poultry carcasses in abattoirs in New Taipei City and Taipei City (OIE, September 12, 2017)

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Highly pathogenic avian influenza, Chinese Taipei

Information received on 14/09/2017 from Dr Tai-Hwa Shih, Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine Council of Agriculture Executive Yuan, Ministry of Agriculture, Taipei, Chinese Taipei

Summary Report type Follow-up report No. 39 Date of start of the event 08/01/2015 Date of confirmation of the event 11/01/2015 Report date 12/09/2017 Date submitted to OIE 14/09/2017 Reason for notification Recurrence of a listed disease Date of previous occurrence 23/07/2014 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N8 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (11/01/2015) Follow-up report No. 1 (13/01/2015) Follow-up report No. 2 (14/01/2015) Follow-up report No. 3 (16/01/2015) Follow-up report No. 4 (20/01/2015) Follow-up report No. 5 (21/01/2015) Follow-up report No. 6 (28/01/2015) Follow-up report No. 7 (04/02/2015) Follow-up report No. 8 (11/02/2015) Follow-up report No. 9 (17/02/2015) Follow-up report No. 10 (26/02/2015) Follow-up report No. 11 (04/03/2015) Follow-up report No. 12 (12/03/2015) Follow-up report No. 13 (24/04/2015) Follow-up report No. 14 (01/05/2015) Follow-up report No. 15 (12/05/2015) Follow-up report No. 16 (18/05/2015) Follow-up report No. 17 (29/05/2015) Follow-up report No. 18 (07/07/2015) Follow-up report No. 19 (11/08/2015) Follow-up report No. 20 (04/09/2015) Follow-up report No. 21 (08/12/2015) Follow-up report No. 22 (04/01/2016) Follow-up report No. 23 (02/02/2016) Follow-up report No. 24 (22/02/2016) Follow-up report No. 25 (07/03/2016) Follow-up report No. 26 (11/04/2016) Follow-up report No. 27 (19/04/2016) Follow-up report No. 28 (05/05/2016) Follow-up report No. 29 (22/07/2016) Follow-up report No. 30 (08/12/2016) Follow-up report No. 31 (23/12/2016) Follow-up report No. 32 (09/01/2017) Follow-up report No. 33 (07/03/2017) Follow-up report No. 34 (17/03/2017) Follow-up report No. 35 (27/03/2017) Follow-up report No. 36 (03/06/2017) Follow-up report No. 37 (27/06/2017) Follow-up report No. 38 (11/07/2017) Follow-up report No. 39 (12/09/2017)

New outbreaks (2)

Outbreak 1 (2017-npi-3) Taishan District, NEW TAIPEI CITY Date of start of the outbreak 01/09/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Slaughterhouse Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 49 0 49 0 Affected population Native chickens in an abattoir(2017-ntp-3)

Outbreak 2 (2017-tp-6) Wanhua District, TAIPEI CITY Date of start of the outbreak 01/09/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Slaughterhouse Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 27 0 27 0 Affected population Native chickens in an abattoir(2017-tp-6)

Summary of outbreaks Total outbreaks: 2 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 76 ** 0 76 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds ** 0.00% ** 100.00% *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 Suspected signs were observed in poultry carcasses during post-mortem inspection in two abattoirs in New Taipei City and Taipei City. Samples were sent to the AHRI for diagnosis. H5N8 subtype HPAI was confirmed by the AHRI. The carcasses were destroyed and thorough cleaning and disinfection have been conducted in the abattoirs. After tracing back to the farm of origin, any positive results will be included in follow-up reports.

Control measures Measures applied Movement control inside the country Disinfection / Disinfestation Screening Quarantine Stamping out Zoning Vaccination prohibited No treatment of affected animals Measures to be applied No other measures

Diagnostic test results Laboratory name and type Species Test Test date Result Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 07/07/2017 Positive Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 03/09/2017 Positive Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 06/07/2017 Positive Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 02/09/2017 Positive

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

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