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Highly pathogenic avian influenza, PrintPrintPrint Chinese CloseCloseClose

Information received on 02/02/2016 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. 40

Date of start of the event 07/01/2015

Date of confirmation of the event 11/01/2015

Report date 02/02/2016

Date submitted to OIE 02/02/2016

Reason for notification Reoccurrence of a listed disease

Date of previous occurrence 23/07/2014

Manifestation of disease Clinical disease

Causal agent Highly pathogenic avian influenza virus

Serotype H5N2

Nature of diagnosis Clinical, Laboratory (advanced)

This event pertains to a defined zone within the country Immediate notification (12/01/2015) Follow -up report No. 1 (13/01/2015) Follow -up report No. 2 (15/01/2015) Follow -up report No. 3 (16/01/2015) Follow -up report No. 4 (19/01/2015) 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 (19/03/2015) Follow -up report No. 14 (25/03/2015) Follow -up report No. 15 (02/04/2015) Follow -up report No. 16 (14/04/2015) Follow -up report No. 17 (17/04/2015) Follow -up report No. 18 (24/04/2015) Follow -up report No. 19 (01/05/2015) Follow -up report No. 20 (11/05/2015) Related reports Follow -up report No. 21 (18/05/2015) Follow -up report No. 22 (29/05/2015) Follow -up report No. 23 (04/06/2015) Follow -up report No. 24 (12/06/2015) Follow -up report No. 25 (18/06/2015) Follow -up report No. 26 (07/07/2015) Follow -up report No. 27 (13/07/2015) Follow -up report No. 28 (20/07/2015) Follow -up report No. 29 (27/07/2015) Follow -up report No. 30 (31/07/2015) Follow -up report No. 31 (11/08/2015) Follow -up report No. 32 (24/08/2015) Follow -up report No. 33 (04/09/2015) Follow -up report No. 34 (02/10/2015) Follow -up report No. 35 (21/10/2015) Follow -up report No. 36 (30/10/2015) Follow -up report No. 37 (08/12/2015) Follow -up report No. 38 (04/01/2016) Follow -up report No. 39 (15/01/2016) Follow -up report No. 40 (02/02/2016) Follow -up report No. 41 (22/02/2016) Follow -up report No. 42 (07/03/2016) New outbreaks (4) Outbreak 1 (ty-2016-1) Yangmei , TAOYUAN CITY

Date of start of the outbreak 01/01/2016

Outbreak status Continuing (or date resolved not provided)

Epidemiological unit Farm

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Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 7530 625 625 6905 0 Affected population Ducks (ty-2016-1)

Outbreak 2 (tn-2016-1) Houbi District, CITY

Date of start of the outbreak 11/01/2016

Outbreak status Continuing (or date resolved not provided)

Epidemiological unit Farm

Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 23000 14160 14160 8840 0 Affected population Ducks (tn-2016-1)

Outbreak 3 (tn-2016-2) Houbi District, TAINAN CITY

Date of start of the outbreak 11/01/2016

Outbreak status Continuing (or date resolved not provided)

Epidemiological unit Farm

Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 3000 1829 1829 1171 0 Affected population Ducks (tn-2016-2)

Outbreak 4 (tn-2016-3) , TAINAN CITY

Date of start of the outbreak 15/01/2016

Outbreak status Continuing (or date resolved not provided)

Epidemiological unit Farm

Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 1100 673 673 427 0 Affected population Geese (tn-2016-3) Summary of Total outbreaks: 4 outbreaks

Total animals Species Susceptible Cases Deaths Destroyed Slaughtered affected Birds 34630 17287 17287 17343 0 Apparent morbidity Apparent mortality Apparent case fatality Proportion susceptible animals Species Outbreak statistics rate rate rate lost* Birds 49.92% 49.92% 100.00% 100.00% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology

Source of the outbreak(s) or origin Unknown or inconclusive of infection Abnormal mortalities were observed in four poultry farms in Taoyuan City and Tainan City. Samples were sent to the National Laboratory (AHRI) for diagnosis. H5N2 subtype HPAI was confirmed by AHRI. These farms have been put Epidemiological under movement restriction. All animals on the infected farms have been culled. Thorough cleaning and disinfection comments have been conducted after stamping out operation. Surrounding poultry farms within 3 km radius of the infected farms are under intensified surveillance for 3 months. Control measures

Movement control inside the country Screening Disinfection / Disinfestation Quarantine Measures applied 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 Birds gene sequencing 14/01/2016 Positive laboratory) Animal Health Research Institute (AHRI) (National Birds gene sequencing 19/01/2016 Positive laboratory) Animal Health Research Institute (AHRI) (National Birds reverse transcription - polymerase chain reaction 13/01/2016 Positive

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laboratory) (RT-PCR) Animal Health Research Institute (AHRI) (National Birds reverse transcription - polymerase chain reaction 17/01/2016 Positive laboratory) (RT-PCR) Future Reporting

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

Map of outbreak locations

http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=Map ... 09/ 03/ 2016