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Italy: H5N3 low pathogenicity in in an ostrich farm in the Mantua area

tetano

tetano

Editor, Senior Moderator
Serological positivity for H5 flu virus in an ostrich farm in the province of Mantua. The samples had been taken as part of ordinary surveillance. There was no clinical symptomatology in ostrich breeding, about a hundred animals, which on June 16 had serological positivity for H5 flu virus. Confirmation came on June 16 from the National Reference Center for Avian Influenza, following tests for inhibiting haemagglutination.

According to the Ministry of Health, the lack of clinical symptoms and the absence of cross-reactivity towards highly pathogenic antigens of the subtype H5, suggest that they are low pathogenic avian influenza (LPAI). Phylogenetic analysis is underway to establish the examination of the pathotype and neuraminidase.

https://www.sivempveneto.it/influen...genitica-e-e-provvedimenti-sanitari-previsti/
 
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[TR]
[TD]

[TD="align: left"]Low pathogenic avian influenza (poultry),
Italy[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]Information received on 23/06/2020 from Dr Silvio Borrello, Chief Veterinary Officer, Food Safety and Collegial Bodies for Health Protection, Minist?re de la Sant?, Department for Veterinary Public Health, Rome, Italy[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[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%"]15/06/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]16/06/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]22/06/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]23/06/2020[/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%"]24/04/2020[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]

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

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5N3[/TD]

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

[TD="width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]
[/TD]
[/TR]
[TR]
[TD]New outbreaks (1)[/TD]
[/TR]
[TR]
[TD]
Suzzara, MANTOVA, Lombardia
Date of start of the outbreak15/06/2020
Outbreak statusContinuing (or date resolved not provided)
Epidemiological unitFarm
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds132501320
Affected populationThe positivity concerns an ostrich farm located in the municipality of Suzzara, in the Province of Mantova.

[TD="align: left"]Outbreak 1 (LPAI 1_2020_MN)[/TD]
[/TD]
[/TR]
[TR]
[TD]
Total outbreaks: 1
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Birds132501320
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Birds3.79%0.00%0.00%100.00%

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

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
[/TD]
[/TR]
[TR]
[TD]Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[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
[/TD]
[/TR]
[TR]
[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
Experimental Zooprophylactic Institute (IZS), Venezie - Padova (National laboratory)Birdshaemagglutination inhibition test (HIT)16/06/2020Positive
[/TD]
[/TR]
[TR]
[TD]Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
[/TD]
[/TR]
[/TABLE]

...

https://www.oie.int/wahis_2/public/w...reportid=34785
 
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