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2021-1-20 2:48:19


OIE: Highly pathogenic avian influenza (H5N5), Chinese Taipei
submited by kickingbird at Jan, 14, 2021 16:13 PM from OIE

Information received on 13/01/2021 from Dr Wen-Jane Tu, Chief Veterinary Officer, 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. 27
Date of start of the event
09/09/2019
Date of confirmation of the event
13/09/2019
Report date
13/01/2021
Date submitted to OIE
13/01/2021
Reason for notification
New strain of a listed disease in the country
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N5
Nature of diagnosis
Laboratory (advanced)
This event pertains to
a defined zone within the country
Related reports
Immediate notification (23/09/2019)
Follow-up report No. 1 (14/10/2019)
Follow-up report No. 2 (22/11/2019)
Follow-up report No. 3 (03/01/2020)
Follow-up report No. 4 (06/01/2020)
Follow-up report No. 5 (13/01/2020)
Follow-up report No. 6 (22/01/2020)
Follow-up report No. 7 (10/02/2020)
Follow-up report No. 8 (20/02/2020)
Follow-up report No. 9 (03/03/2020)
Follow-up report No. 10 (10/03/2020)
Follow-up report No. 11 (27/03/2020)
Follow-up report No. 12 (07/04/2020)
Follow-up report No. 13 (21/04/2020)
Follow-up report No. 14 (11/05/2020)
Follow-up report No. 15 (18/05/2020)
Follow-up report No. 16 (01/06/2020)
Follow-up report No. 17 (30/06/2020)
Follow-up report No. 18 (10/08/2020)
Follow-up report No. 19 (17/08/2020)
Follow-up report No. 20 (21/08/2020)
Follow-up report No. 21 (31/08/2020)
Follow-up report No. 22 (07/09/2020)
Follow-up report No. 23 (21/09/2020)
Follow-up report No. 24 (29/09/2020)
Follow-up report No. 25 (15/12/2020)
Follow-up report No. 26 (04/01/2021)
Follow-up report No. 27 (13/01/2021)
New outbreaks (3)

Outbreak 1 (2020-pt-4)
Yanpu Township, Pingtung County
Date of start of the outbreak
25/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
6376
0
0
6376
0
Affected population
Meat Ducks(2020-pt-4)
Outbreak 2 (2020-pt-5)
Gaoshu Township, Pingtung County
Date of start of the outbreak
25/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
2688
0
0
2688
0
Affected population
Meat Ducks(2020-pt-5)
Outbreak 3 (2020-yl-20)
Dongshi Township, Yunlin County
Date of start of the outbreak
31/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
1077
293
293
784
0
Affected population
Meat Geese(2020-yl-20)
Summary of outbreaks
Total outbreaks: 3
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
10141
293
293
9848
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
2.89%
2.89%
100.00%
100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
Unknown or inconclusive
Epidemiological comments
Samples from Yunlin County and Pingtung Country were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. Highly pathogenic avian influenza H5N5 subtype was confirmed by AHRI. The infected farms in Yunlin County and Pingtung Country has been placed under movement restriction. All animals on the infected farms have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within 3 km radius of the infected farms are under intensified surveillance for three months.

Control measures
Measures applied
Movement control inside the country
Surveillance outside containment and/or protection zone
Surveillance within containment and/or protection zone
Traceability
Quarantine
Stamping out
Zoning
Disinfection
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
31/12/2020
Positive
Animal Health Research Institute (AHRI) (National laboratory)
Birds
gene sequencing
03/01/2021
Positive
Animal Health Research Institute (AHRI) (National laboratory)
Birds
reverse transcription - polymerase chain reaction (RT-PCR)
30/12/2020
Positive
Animal Health Research Institute (AHRI) (National laboratory)
Birds
reverse transcription - polymerase chain reaction (RT-PCR)
02/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
See Also: Latest news in those days:

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