Italy - Avian Flu in poultry and wild birds - December 2020

[Gert van der Hoek]

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[TD="align: left"]Low pathogenic avian influenza (poultry),
Italy[/TD]
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[TD]Information received on 20/11/2020 from Dr Davide Lecchini, Chief Veterinary Officer, Directorate General for Veterinary Health and Veterinary MedicinalProducts (DGSAF), Ministry of Health, ROME, Italy[/TD]
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[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Immediate notification[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]17/11/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]18/11/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]20/11/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]20/11/2020[/TD]

[TD="width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Recurrence of a listed disease[/TD]

[TD="width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]20/06/2020[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Sub-clinical infection[/TD]

[TD="width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Low pathogenic avian influenza virus[/TD]

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5[/TD]

[TD="width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Laboratory (advanced)[/TD]

[TD="width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]

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[TD]New outbreaks (1)[/TD]
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Gallivola, PAVIA, Lombardia
Date of start of the outbreak	17/11/2020
Outbreak status	Continuing (or date resolved not provided)
Epidemiological unit	Farm
Affected animals	Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 11214 8
Affected population	The positivity concerns a breeding of Gallus gallus and ducks located in the municipality of Galliavola, in the province of Pavia.

[TD="align: left"]Outbreak 1 (LPAI 4_2020_PV)[/TD]

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Total outbreaks: 1
Total animals affected	Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 11214 8
Outbreak statistics	Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 0.07% ** ** **

[TD="align: left"]Summary of outbreaks[/TD]

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]

[TD="colspan: 2"]**Not calculated because of missing information[/TD]

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[TD]Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

Epidemiological comments

The positivity concerns a breeding of Gallus gallus and ducks located in the municipality of Galliavola, in the province of Pavia. So far, positivity has only been confirmed on a serological basis by H5 subtype specific haemagglutination inhibition tests. No clinical signs or increased mortality were reported in this flock. Further investigations and sampling are underway to detect the active circulation of the virus and to identify and characterize the strain responsible for seroconversion. Based on the absence of clinical signs, it is believed that seropositivity can be attributed to an LPAI infection.

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[TD]Control measures

Measures applied	Surveillance within containment and/or protection zone Traceability Official disposal of carcasses, by-products and waste Stamping out Disinfection Vaccination permitted (if a vaccine exists) No treatment of affected animals
Measures to be applied	No other measures

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[TD]Diagnostic test results

Laboratory name and type	Species	Test	Test date	Result
Experimental Zooprophylactic Institute (IZS), Venezie - Padova (National laboratory)	Birds	haemagglutination inhibition test (HIT)	18/11/2020	Positive

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[TD]Future Reporting

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

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Map of outbreak locations

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[Gert van der Hoek]

The avian flu has arrived in Veneto. Wild birds are also positive for the virus, but the hunt does not stop


Avian flu returns to cause concern throughout Europe, including Italy. In recent days, some wild birds positive for the virus have also been found in Veneto.
As you can read on the website Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe):