OIE: Highly pathogenic avian influenza, Nigeria

OIE: Highly pathogenic avian influenza, Nigeria
submited by kickingbird at Jul, 29, 2008 20:24 PM from OIE

Information received on 25/07/2008 from Dr Junaidu A. Maina, Director, Federal Ministry of Agriculture and Rural Development, Federal Dept. of Livestock & Pest Control Services, ABUJA, Nigeria

Summary

Report type	Immediate notification
Start date	22/07/2008
Date of first confirmation of the event	24/07/2008
Report date	25/07/2008
Date submitted to OIE	25/07/2008
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	09/01/2008
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	Laboratory (advanced)
This event pertains to	the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 2

Outbreak Location and Affected population

KATSINA (Kadarko quarters, Katsina) : A small backyard flock with mixed species of local chickens, Guinea fowls and ducks
KANO (Fagen Kawo, Dawakin Tofa) : A commercial backyard poultry flock, but the owner keeps few ducks within the premises

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	4363	1545	1545	2818	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	35.41%	35.41%	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	Detailed investigation is on-going, but information so far indicates the introduction of new species into the existing flock as the possible cause of the outbreak

Control measures

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

Diagnostic test results

Laboratory name and type

National Veterinary Research Institute, Vom (Regional Reference Laboratory)

Tests and results

Species	Test	Test date	Result
Birds	haemagglutination inhibition test (HIT)	24/07/2008	Positive
Birds	reverse transcription – polymerase chain reaction (RT-PCR)	24/07/2008	Positive
Birds	virus isolation	24/07/2008	Positive

Future Reporting

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

See Also:

http://www.oie.int

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