OIE report on bird flu in Japan

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http://www.oie.int/Messages/040114JPN.htm

 

HIGHLY PATHOGENIC AVIAN INFLUENZA IN JAPAN:

(CONFIRMATION OF DIAGNOSIS)

 

Information received on 13 January 2004 from Dr Masako

Kurimoto, Director of Animal Health and Animal

Products Safety Division, Ministry of Agriculture,

Forestry and Fisheries, Tokyo:

 

Report date: 13 January 2004.

 

Location of the outbreak: Yamaguchi prefecture.

 

Description of affected population in the outbreak:

one layer flock.

 

Total number of animals in the outbreak:

 

susceptible: 34,640

 

cases: 1

 

deaths: 5,965

 

destroyed: 8,274

 

slaughtered: 17

 

Laboratory where diagnosis was made: National

Institute of Animal Health, Ibaraki Prefecture.

 

Diagnostic tests used:

 

- haemagglutination inhibition test positive on 12

January 2004;

 

- polymerase chain reaction (PCR) and intravenous

pathogenicity index test positive on 13 January 2004.

 

Causal agent: avian influenza virus subtype H5N1.

 

Source of agent / origin of infection: unknown; under

investigation.

 

Mode of spread: unknown.

 

Control measures:

 

- quarantine;

 

- movement control is being applied to the affected

farm and other farms within a 30-km radius zone around

the affected farm;

 

- desinfection and surveillance is being performed

around the farms within a 30-km radius of the affected

farm;

 

- stamping out;

 

- screening;

 

- vaccination is not being used.

 

Animal Health Information Department

Office international des épizooties (OIE)

information.dept

 

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