OIE: Highly pathogenic avian influenza, Chinese Taipei

Information received on 30/01/2019 from Dr Wen-Jane Tu, Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture, Executive Yuan, Taipei, Chinese Taipei

Summary

Report type	Follow-up report No. 122
Date of start of the event	07/01/2015
Date of confirmation of the event	11/01/2015
Report date	28/01/2019
Date submitted to OIE	30/01/2019
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	H5N2
Nature of diagnosis	Clinical, Laboratory (advanced)
This event pertains to	a defined zone within the country
Related reports	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) 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) Follow-up report No. 43 (11/04/2016) Follow-up report No. 44 (19/04/2016) Follow-up report No. 45 (05/05/2016) Follow-up report No. 46 (20/06/2016) Follow-up report No. 47 (21/09/2016) Follow-up report No. 48 (17/10/2016) Follow-up report No. 49 (09/01/2017) Follow-up report No. 50 (06/02/2017) Follow-up report No. 51 (01/03/2017) Follow-up report No. 52 (07/03/2017) Follow-up report No. 53 (17/03/2017) Follow-up report No. 54 (20/03/2017) Follow-up report No. 55 (27/03/2017) Follow-up report No. 56 (10/04/2017) Follow-up report No. 57 (11/04/2017) Follow-up report No. 58 (01/05/2017) Follow-up report No. 59 (08/05/2017) Follow-up report No. 60 (15/05/2017) Follow-up report No. 61 (03/06/2017) Follow-up report No. 62 (07/06/2017) Follow-up report No. 63 (16/06/2017) Follow-up report No. 64 (23/06/2017) Follow-up report No. 65 (27/06/2017) Follow-up report No. 66 (03/07/2017) Follow-up report No. 67 (11/07/2017) Follow-up report No. 68 (17/07/2017) Follow-up report No. 69 (24/07/2017) Follow-up report No. 70 (31/07/2017) Follow-up report No. 71 (07/08/2017) Follow-up report No. 72 (22/08/2017) Follow-up report No. 73 (31/08/2017) Follow-up report No. 74 (05/09/2017) Follow-up report No. 75 (11/10/2017) Follow-up report No. 76 (30/10/2017) Follow-up report No. 77 (06/11/2017) Follow-up report No. 78 (13/11/2017) Follow-up report No. 79 (20/11/2017) Follow-up report No. 80 (29/11/2017) Follow-up report No. 81 (12/12/2017) Follow-up report No. 82 (29/12/2017) Follow-up report No. 83 (05/01/2018) Follow-up report No. 84 (15/01/2018) Follow-up report No. 85 (16/01/2018) Follow-up report No. 86 (23/01/2018) Follow-up report No. 87 (29/01/2018) Follow-up report No. 88 (09/02/2018) Follow-up report No. 89 (12/02/2018) Follow-up report No. 90 (23/02/2018) Follow-up report No. 91 (26/02/2018) Follow-up report No. 92 (05/03/2018) Follow-up report No. 93 (12/03/2018) Follow-up report No. 94 (20/03/2018) Follow-up report No. 95 (09/04/2018) Follow-up report No. 96 (16/04/2018) Follow-up report No. 97 (27/04/2018) Follow-up report No. 98 (01/05/2018) Follow-up report No. 99 (15/05/2018) Follow-up report No. 100 (21/05/2018) Follow-up report No. 101 (28/05/2018) Follow-up report No. 102 (04/06/2018) Follow-up report No. 103 (11/06/2018) Follow-up report No. 104 (26/06/2018) Follow-up report No. 105 (02/07/2018) Follow-up report No. 106 (12/07/2018) Follow-up report No. 107 (07/08/2018) Follow-up report No. 108 (21/08/2018) Follow-up report No. 109 (04/09/2018) Follow-up report No. 110 (10/09/2018) Follow-up report No. 111 (26/09/2018) Follow-up report No. 112 (08/10/2018) Follow-up report No. 113 (09/10/2018) Follow-up report No. 114 (29/10/2018) Follow-up report No. 115 (13/11/2018) Follow-up report No. 116 (04/12/2018) Follow-up report No. 117 (17/12/2018) Follow-up report No. 118 (25/12/2018) Follow-up report No. 119 (04/01/2019) Follow-up report No. 120 (11/01/2019) Follow-up report No. 121 (21/01/2019) Follow-up report No. 122 (28/01/2019)

New outbreaks (2)

Outbreak 1 (2019-pt-1)

Ligang Township, Pingtung County

Date of start of the outbreak

14/01/2019

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Farm

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	6510		0	6510	0

Affected population

Meat Ducks(2019-pt-1)

Outbreak 2 (2019-hc-1)

Xinfeng Township, Hsinchu County

Date of start of the outbreak

23/01/2019

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Not applicable

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	100	100	100	0	0

Affected population

Native Chickens(2019-hc-1)

Summary of outbreaks

Total outbreaks: 2

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	6610	100 **	100	6510	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	**	1.51%	**	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

Samples from Pingtung County and Hsinchu County were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. Highly pathogenic avian influenza H5N2 subtype was confirmed by AHRI. The infected farm in Pingtung County has been placed under movement restriction. All animals on the infected farm have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. The sampling spot in Hsinchu County was disinfected. Surrounding poultry farms within 3 km radius of the infected farm and the sampling spot are under intensified surveillance for three months.

Control measures

Measures applied	Movement control inside the country Disinfection / Disinfestation Screening Traceability Quarantine Surveillance outside containment and/or protection zone Official destruction of animal products Official disposal of carcasses, by-products and waste Stamping out Surveillance within containment and/or protection zone 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	21/01/2019	Positive
Animal Health Research Institute (AHRI) (National laboratory)	Birds	gene sequencing	26/01/2019	Positive
Animal Health Research Institute (AHRI) (National laboratory)	Birds	reverse transcription - polymerase chain reaction (RT-PCR)	20/01/2019	Positive
Animal Health Research Institute (AHRI) (National laboratory)	Birds	reverse transcription - polymerase chain reaction (RT-PCR)	25/01/2019	Positive

Future Reporting

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