OIE：Low pathogenic avian influenza (poultry), Chinese Taipei

OIE：Low pathogenic avian influenza (poultry), Chinese Taipei
submited by kickingbird at Jan, 11, 2012 10:31 AM from OIE

Information received on 10/01/2012 from Dr Kwo-Ching Huang, Chief Veterinary Officer and Deputy Director General, , Bureau of Animal and Plant Health Inspection and Quarantine Council of agriculture, Executive Yuan , Taipei, Chinese Taipei

Summary

Report type	Immediate notification
Start date	25/11/2011
Date of first confirmation of the event	06/01/2012
Report date	10/01/2012
Date submitted to OIE	10/01/2012
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	11/02/2011
Manifestation of disease	Clinical disease
Causal agent	Low pathogenic avian influenza virus
Serotype	H5N2
Nature of diagnosis	Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Location(s)

CHANG-HUA (Fang-Yuan Township)

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	63000	200	200	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	0.32%	0.32%	100.00%	0.32%

* 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

Clinical and epidemiological investigations were initiated after cases were reported. Samples (dead chicken, blood and swab samples) were also taken from the index layer farm for serological and virological analysis, and H5N2 antibody and antigen were detected. Movement restriction, clinical health inspection and epidemiological investigation were conducted on the index farm with the results of normal health, mortality and egg production condition. Clinical and epidemiological investigations for the surrounding poultry farms were implemented and no clinical suspected case or abnormal mortality were detected or observed. Other laboratory tests are on-going.

Note by the OIE Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2011).

Control measures

Measures applied	Quarantine Movement control inside the country Screening Zoning Disinfection of infected premises/establishment(s) Vaccination prohibited No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Animal Health Research Institute (National laboratory)

Tests and results

Species	Test	Test date	Result
Birds	gene sequencing	09/01/2012	Positive
Birds	haemagglutination inhibition test (HIT)	06/01/2012	Positive
Birds	reverse transcription - polymerase chain reaction (RT-PCR)	09/01/2012	Positive
Birds	virus isolation	10/01/2012	Positive

Future Reporting

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

See Also:

http://www.oie.int

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