OIE: Highly pathogenic avian influenza(H7N7), Australia

OIE: Highly pathogenic avian influenza(H7N7), Australia
submited by kickingbird at Aug, 1, 2020 13:55 PM from OIE

Summary

Report type	Immediate notification
Date of start of the event	24/07/2020
Date of confirmation of the event	31/07/2020
Report date	31/07/2020
Date submitted to OIE	31/07/2020
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	21/02/2014
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H7N7
Nature of diagnosis	Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to	a defined zone within the country

New outbreaks (1)

Outbreak 1

Lethbridge, Victoria

Date of start of the outbreak

24/07/2020

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Farm

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	43500	21750	1669	0	0

Affected population

One free range premise with two separate sheds. All birds in one shed affected. Birds in the second shed are clinically unaffected.

Summary of outbreaks

Total outbreaks: 1

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	43500	21750	1669	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	50.00%	3.84%	7.67%	3.84%

*Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology

Source of the outbreak(s) or origin of infection

Control measures

Measures applied	Movement control inside the country Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone Traceability Quarantine Vaccination prohibited No treatment of affected animals
Measures to be applied	Official destruction of animal products Stamping out Disinfection

Diagnostic test results

Laboratory name and type	Species	Test	Test date	Result
AgriBio (Local laboratory)	Birds	real-time PCR	29/07/2020	Positive
Australian Centre for Disease Preparedness (OIE Reference Laboratory)	Birds	gene sequencing	31/07/2020	Positive
Australian Centre for Disease Preparedness (OIE Reference Laboratory)	Birds	real-time PCR	30/07/2020	Positive

Future Reporting

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

See Also:

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