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Taiwan - H5N1 in wild birds 2022-2024

Shiloh

Shiloh

Editor, Senior Moderator
Source: https://www.cna.com.tw/news/aloc/202205280077.aspx


Hualien Creek exits the sea and sees a large number of bird carcasses sent for testing and found H5N1
13:232022/05/28 Central time
Wang Zhiwei

A large number of birds were found to have died abnormally at the Hualien Creek estuary, which was horrific. The county government sent the bird autopsy to the Animal Health Laboratory of the Agricultural Committee for inspection, and it was confirmed to be the H5N1 highly pathogenic avian influenza virus strain, which was the first time a wild bird in Hualien was found. The Agriculture Department said that there is no doubt that H5N1 can infect people, and it has now gone to the sea for environmental disinfection. The public is asked not to touch the bird carcasses when they find them, and bird friends are also invited to inform each other to assist in monitoring.

The Hualien Creek estuary is listed as an important national wetland. Unexpectedly, on the 23rd of this month, a large number of bird carcasses were seen on the sand dune beach of the estuary. The number was about 20. The people successively notified the county government. Bird lovers who are aware of the difference and also worry about infectious diseases or artificial poisoning, please notify the relevant units of the Wild Bird Association...
 
Immediate notification
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-), Chinese Taipei
...
General Information

COUNTRY OR ZONE
ZONE

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

STARTED ON
24-05-2022

ANIMAL TYPE
TERRESTRIAL

GENOTYPE/ SEROTYPE/ SUBTYPE
H5N1

CONFIRMED ON
29-05-2022

REASON
Recurrence of an eradicated strain

CAUSAL AGENT
Highly pathogenic avian influenza virus

ENDED ON
29-05-2022

DISEASE CATEGORY
OIE-listed

REPORTED ON
04-07-2022

LAST OCCURRENCE
-

Epidemiology

SOURCE OF EVENT OR ORIGIN OF INFECTION
- Unknown or inconclusive


EPIDEMIOLOGICAL COMMENTS
-Eighteen whiskered terns and one lesser sand plover carcasses were found in the intertidal zone of Shoufeng Township, Hualien County, on May 24, 2022. Highly pathogenic avian influenza H5N1 subtype viruses were detected and confirmed. The reported region was kept in quarantine and cleaned/disinfected, thoroughly. Two neighboring farms within a 3-kilometer radius of the region were detected ''negative'' and no other cases were found through intensified surveillance.
...

Outbreaks

ob_104451 - Shoufeng Township

OUTBREAK REFERENCE
2022-hl-1

STARTED ON
24-05-2022

EPIDEMIOLOGICAL UNIT
Other

DETAILED CHARACTERISATION
-

NUMBER OF OUTBREAKS
-

ENDED ON
29-05-2022

AFFECTED POPULATION DESCRIPTION
-

APPROXIMATE LOCATION
Shoufeng Township

FIRST ADMINISTRATIVE DIVISION
Chinese Taipei

SECOND ADMINISTRATIVE DIVISION
Hualien County

THIRD ADMINISTRATIVE DIVISION
-

GEOGRAPHIC COORDINATES
Lat : 23.937125

Long : 121.608815


SPECIES MEASURING UNIT SUSCEPTIBLE CASES DEATHS KILLED AND DISPOSED OF SLAUGHTERED/KILLED FOR COMMERCIAL USE VACCINATED
Lesser sand plover (Charadrius mongolus):Charadriidae-Charadriiformes NEW Animal - 1 1 0 0 0
TOTAL Animal - 1 1 0 0 0
Whiskered tern (Chlidonias hybrida):Laridae-Charadriiformes NEW Animal - 18 18 0 0 0
TOTAL Animal - 18 18 0 0 0
- NEW Animal - 19 19 0 0 0
TOTAL Animal - 19 19 0 0 0
...
https://wahis.woah.org/#/report-info?reportId=56579
 
Chinese Taipei - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Immediate notification - WAHIS

OB_114266 - 2023-YL-8 - LUNBEI TOWNSHIP

EPIDEMIOLOGICAL COMMENTS

The local government reported that dead chickens were discarded on the roadside in Yunlin County on Jan.14, 2023. The local government traced back to the source and confirmed it was from one backyard for their own use and no contact with poultry or poultry facilities. The local government implemented movement restriction to the animals of the backyard. Samples were sent to the National Reference Laboratory (Animal Health Research Institute, AHRI) for diagnosis on the same day. The H5N1 subtype of highly pathogenic avian influenza was confirmed by AHRI on Jan. 19. Meanwhile, 9 chickens and 9 ducks (backyard animals) were culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within 5 km radius of the infected flocks are now under intensified surveillance. ...

DETAILED CHARACTERISATION
Clade 2.3.4.4b - Lineage: Fully Eurasian

FIRST ADMINISTRATIVE DIVISION
Chinese Taipe

LOCATION
Lunbei Township

AFFECTED POPULATION DESCRIPTION
Chickens and ducks.

https://wahis.woah.org/#/in-review/4916
 
Chinese Taipei - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 1

GENERAL INFORMATION
COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
OIE-listed

EVENT ID
4916

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2023/01/14

REASON FOR NOTIFICATION
Recurrence of an eradicated disease

DATE OF LAST OCCURRENCE
2022/05/29

CONFIRMATION DATE
2023/01/18

EVENT STATUS
On-going

END DATE
-

SELF-DECLARATION
NO

REPORT INFORMATION
REPORT NUMBER
Follow-up report 1

REPORT ID
FUR_160013

REPORT REFERENCE
-

REPORT DATE
2023/03/25

REPORT STATUS
Validated

NO EVOLUTION REPORT
-

EPIDEMIOLOGY
SOURCE OF EVENT OR ORIGIN OF INFECTION
Unknown or inconclusive

EPIDEMIOLOGICAL COMMENTS

Samples from Changhua County and Kaohsiung City were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by AHRI. The sampling spots were disinfected. Surrounding poultry farms within 5 km radius of the sampling spots are under intensified surveillance for three months.

QUANTITATIVE DATA SUMMARY
MEASURING UNIT
Animal

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated
Birds (DOMESTIC) NEW 500 500 500 0 0 0
TOTAL 528 510 510 18 0 0
Whiskered tern (WILD) NEW 1 1 1 0 0 0
TOTAL 1 1 1 0 0 0
All species NEW 501 501 501 0 0 0
TOTAL 529 511 511 18 0 0
...

NEW OUTBREAKS

OB_116109 - 2023-CH-20 - FANGYUAN TOWNSHIP
OB_116111 - 2023-KH-1 - ZUOYING DISTRICT

PREVIOUSLY REPORTED OUTBREAKS

OB_114266 - 2023-YL-8 - LUNBEI TOWNSHIP

https://wahis.woah.org/#/in-review/4916
 
Chinese Taipei - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 2

GENERAL INFORMATION
COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
OIE-listed

EVENT ID
4916

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2023/01/14

REASON FOR NOTIFICATION
Recurrence of an eradicated disease

DATE OF LAST OCCURRENCE
2022/05/29

CONFIRMATION DATE
2023/01/18

EVENT STATUS
On-going

END DATE
-

SELF-DECLARATION
NO

REPORT INFORMATION
REPORT NUMBER
Follow-up report 2

REPORT ID
FUR_160711

REPORT REFERENCE
-

REPORT DATE
2023/05/09

REPORT STATUS
Validated

NO EVOLUTION REPORT
-

EPIDEMIOLOGY
SOURCE OF EVENT OR ORIGIN OF INFECTION
Unknown or inconclusive

EPIDEMIOLOGICAL COMMENTS
Samples from Chiayi County and Hualien County were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by AHRI. The sampling spots were disinfected. Surrounding poultry farms within 5 km radius of the sampling spots are under intensified surveillance for three months.​
...

NEW OUTBREAKS

OB_117917 - 2023-CY-1 - BUDAI TOWNSHIP
OUTBREAK REFERENCE
2023-cy-1

START DATE
2023/04/11

END DATE
-

DETAILED CHARACTERISATION
Clade 2.3.4.4b - Lineage: Fully Eurasian

FIRST ADMINISTRATIVE DIVISION
Chinese Taipei

SECOND ADMINISTRATIVE DIVISION
Chiayi County

THIRD ADMINISTRATIVE DIVISION
-

EPIDEMIOLOGICAL UNIT
Other

LOCATION
Budai Township

Latitude, Longitude
23.3455 , 120.19

(Approximate location)
OUTBREAKS IN CLUSTER
-

MEASURING UNIT
Animal

AFFECTED POPULATION DESCRIPTION
Someone picked a black-faced spoonbill (Platalea minor) in saltern.

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated
Black-faced spoonbill (WILD)
Wild
NEW - 1 1 0 0 0
TOTAL - 1 1 0 0 0
,,,


OB_117918 - 2023-HL-1 - JI'AN TOWNSHIP

OUTBREAK REFERENCE
2023-hl-1

START DATE
2023/04/27

END DATE
-

DETAILED CHARACTERISATION
Clade 2.3.4.4b - Lineage: Fully Eurasian

FIRST ADMINISTRATIVE DIVISION
Chinese Taipei

SECOND ADMINISTRATIVE DIVISION
Hualien County

THIRD ADMINISTRATIVE DIVISION
-

EPIDEMIOLOGICAL UNIT
Other

LOCATION
Ji'an Township

Latitude, Longitude
23.937125 , 121.608815

(Approximate location)
OUTBREAKS IN CLUSTER
-

MEASURING UNIT
Animal

AFFECTED POPULATION DESCRIPTION
Someone picked a gull-billed term (Gelochelidon nilotica) in dune near by Hualian river.

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated
Gull-billed tern (WILD)
Wild
NEW - 1 1 0 0 0
TOTAL - 1 1 0 0 0
...
https://wahis.woah.org/#/in-review/49​
 
Chinese Taipei - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 1


GENERAL INFORMATION

COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
Listed disease

EVENT ID
5411

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2023/12/08

REASON FOR NOTIFICATION
Recurrence of an eradicated strain

DATE OF LAST OCCURRENCE
2023/07/21

CONFIRMATION DATE
2023/12/11

EVENT STATUS
On-going

END DATE- SELF-DECLARATION

NO REPORT INFORMATION

REPORT NUMBER
Follow-up report 1

REPORT ID
FUR_165793

REPORT REFERENCE REPORT DATE
2024/02/20

REPORT STATUS
Validated

NO EVOLUTION REPORT

EPIDEMIOLOGY

SOURCE OF EVENT OR ORIGIN OF INFECTION
  • Unknown or inconclusive
EPIDEMIOLOGICAL COMMENTS
Samples from Tainan City were sent to the National Laboratory, Veterinary Research Institute (VRI) for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by VRI. The sampling spots were disinfected. Surrounding poultry farms within a 3-km radius of the sampling spots are under intensified surveillance for three months.

QUANTITATIVE DATA SUMMARY

MEASURING UNIT
Animal
SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Black-faced spoonbill (WILD)NEW-55000TOTAL-66000

DIAGNOSTIC DETAILS

CLINICAL SIGNS
YES

METHOD OF DIAGNOSTIC
Clinical, Diagnostic test
Reverse transcription-polymerase chain reaction (RT-PCR)Veterinary Research Institute (VRI), MOABlack-faced spoonbill22023/12/102024/01/10Positive
Gene sequencingVeterinary Research Institute (VRI), MOABlack-faced spoonbill22023/12/112024/01/11Positive
​https://wahis.woah.org/#/in-review/5411
 
Chinese Taipei - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 2


GENERAL INFORMATION

COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
Listed disease

EVENT ID
5411

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2023/12/08

REASON FOR NOTIFICATION
Recurrence of an eradicated strain

DATE OF LAST OCCURRENCE
2023/07/21

CONFIRMATION DATE
2023/12/11

EVENT STATUS
On-going END DATE- SELF-DECLARATION


NO REPORT INFORMATION

REPORT NUMBER
Follow-up report 2

REPORT ID
FUR_166728

REPORT REFERENCE- REPORT DATE
2024/04/09

REPORT STATUS
Validated

NO EVOLUTION REPORT

EPIDEMIOLOGY SOURCE OF EVENT OR ORIGIN OF INFECTION
  • Unknown or inconclusive
EPIDEMIOLOGICAL COMMENTS
Samples from Tainan City were sent to the National Laboratory, Veterinary Research Institute (VRI) for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by VRI. The sampling spot was disinfected. Surrounding poultry farms within 3 km radius of the sampling spot are under intensified surveillance for three months.

QUANTITATIVE DATA SUMMARY
MEASURING UNIT
Animal

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Grey Heron (WILD)NEW-11000TOTAL-11000 Black-faced spoonbill (WILD)NEW------TOTAL-66000 All speciesNEW-11000TOTAL-77000

DIAGNOSTIC DETAILS

CLINICAL SIGNS
YES

METHOD OF DIAGNOSTIC
Clinical, Diagnostic test
Reverse transcription-polymerase chain reaction (RT-PCR)Veterinary Research Institute (VRI), MOABlack-faced spoonbill,Grey Heron32023/12/102024/02/25Positive
Gene sequencingVeterinary Research Institute (VRI), MOABlack-faced spoonbill,Grey Heron32023/12/112024/02/26Positive
​https://wahis.woah.org/#/in-review/5411
 
Source: https://www.taiwannews.com.tw/news/5972412

Tainan detects H5N1 bird flu in wild birds
Virus found in wild waterfowl droppings and black-faced spoonbills
Nov. 15, 2024 10:57
Charlotte Lee
Taiwan News, Staff Writer


TAIPEI (Taiwan News) — Tainan has confirmed HPAI A (highly pathogenic avian influenza H5N1) in wild waterfowl droppings and black-faced spoonbills, the Animal and Plant Health Inspection Agency (APHIA) said Thursday (Nov. 14).

The virus has been identified in the South District and Sihcao wetland of Annan District. The city government has implemented disinfection measures in the affected areas and is closely monitoring nearby poultry farms.​..
 
image.png
​https://wahis.woah.org/#/in-review/6052
 
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