OIE: Highly pathogenic avian influenza, Pakistan

OIE: Highly pathogenic avian influenza, Pakistan
submited by kickingbird at Jun, 27, 2008 22:44 PM from OIE

Information received on 26/06/2008 from Dr R. H. Usmani, Animal Husbandry Commissioner/CVO Government of Pakistan, Livestock Wing , Ministry of Food, Agriculture and Livestock, Islamabad , Pakistan

Summary

Report type	Immediate notification
Start date	17/06/2008
Date of first confirmation of the event	19/06/2008
Report date	26/06/2008
Date submitted to OIE	26/06/2008
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	03/2008
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	Laboratory (advanced), Necropsy
This event pertains to	the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location and Affected population

NORTH-WEST FRONTIER (M/S Hamid poultry farm, Sawabi, Tordhair) : a commercial broiler flock 3 and 6 weeks old

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	6000	4000	4000	2000	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	66.67%	66.67%	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

Contact with wild species

Epidemiological comments

Samples were received on 17 and 20 June 2008. Culling and disposal of birds along with disinfection of the infected premises were carried out on 22 June 2008 by the Rapid Response Team and a State veterinarian. The premise was closed for one month. Monitoring of the areas is ongoing.
Ring vaccination with an H5 inactivated monovalent vaccine in a one-km-radius zone around the affected isolated farm is ongoing.

Control measures

Measures applied	Stamping out Quarantine Screening Vaccination in response to the outbreak (s) Disinfection of infected premises/establishment(s) No treatment of affected animals
Measures to be applied	Zoning

Diagnostic test results

Laboratory name and type

National Animal Sciences Institute, National Agricultural Research Centre (national reference laboratory for avian influenza) (National laboratory)

Tests and results

Species	Test	Test date	Result
Birds		19/06/2008	Positive
Birds		21/06/2008	Positive
Birds	enzyme-linked immunosorbent assay (ELISA)	19/06/2008	Positive
Birds	enzyme-linked immunosorbent assay (ELISA)	21/06/2008	Positive
Birds	rapid tests	19/06/2008	Positive
Birds	rapid tests	21/06/2008	Positive
Birds	virus isolation	19/06/2008	Positive
Birds	virus isolation	21/06/2008	Positive
Birds	virus neutralisation test (VNT)	19/06/2008	Positive
Birds	virus neutralisation test (VNT)	21/06/2008	Positive

Future Reporting

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

See Also:

http://www.oie.int

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