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Italy - new outbreak of avian influenza H5N8 in a fattening turkey farm, Ravenna

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  • Italy - new outbreak of avian influenza H5N8 in a fattening turkey farm, Ravenna

    11/12/2017 ? On 11 December, the National Reference Laboratory for Avian Influenza and Newcastle Disease confirmed as positive for Avian Influenza A virus subtype H5N8 a fattening turkey farm in Ravenna province (Emilia-Romagna region). At the time of confirmation, the farm housed about 17,000 60-day old female turkeys. On 10 December, a marked mortality increase was observed and reported to the Veterinary Services. The farm is located in a large wetland characterised by a low density of poultry farms. Further information will be provided as soon as available.

  • #2
    Highly pathogenic avian influenza,
    Information received on 22/12/2017 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
    Report type Follow-up report No. 35
    Date of start of the event 20/01/2017
    Date of confirmation of the event 21/01/2017
    Report date 22/12/2017
    Date submitted to OIE 22/12/2017
    Reason for notification Recurrence of a listed disease
    Date of previous occurrence 17/01/2015
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N8
    Nature of diagnosis Clinical, Laboratory (advanced)
    This event pertains to a defined zone within the country
    Related reports Immediate notification (23/01/2017)
    Follow-up report No. 1 (24/01/2017)
    Follow-up report No. 2 (26/01/2017)
    Follow-up report No. 3 (03/02/2017)
    Follow-up report No. 4 (08/02/2017)
    Follow-up report No. 5 (16/02/2017)
    Follow-up report No. 6 (17/02/2017)
    Follow-up report No. 7 (24/02/2017)
    Follow-up report No. 8 (01/03/2017)
    Follow-up report No. 9 (03/03/2017)
    Follow-up report No. 10 (17/03/2017)
    Follow-up report No. 11 (30/03/2017)
    Follow-up report No. 12 (03/04/2017)
    Follow-up report No. 13 (11/04/2017)
    Follow-up report No. 14 (13/04/2017)
    Follow-up report No. 15 (31/05/2017)
    Follow-up report No. 16 (21/07/2017)
    Follow-up report No. 17 (28/07/2017)
    Follow-up report No. 18 (31/07/2017)
    Follow-up report No. 19 (03/08/2017)
    Follow-up report No. 20 (07/08/2017)
    Follow-up report No. 21 (10/08/2017)
    Follow-up report No. 22 (19/08/2017)
    Follow-up report No. 23 (25/08/2017)
    Follow-up report No. 24 (31/08/2017)
    Follow-up report No. 25 (07/09/2017)
    Follow-up report No. 26 (15/09/2017)
    Follow-up report No. 27 (02/10/2017)
    Follow-up report No. 28 (12/10/2017)
    Follow-up report No. 29 (20/10/2017)
    Follow-up report No. 30 (27/10/2017)
    Follow-up report No. 31 (10/11/2017)
    Follow-up report No. 32 (23/11/2017)
    Follow-up report No. 33 (01/12/2017)
    Follow-up report No. 34 (07/12/2017)
    Follow-up report No. 35 (22/12/2017)
    New outbreaks (1)
    Outbreak 1 (HPAI_RA_2017_83) Massa Lombarda, RAVENNA, EMILIA-ROMAGNA
    Date of start of the outbreak 10/12/2017
    Outbreak status Resolved (12/12/2017)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 17000 8000 1135 15865 0
    Affected population The positivity regards a farm of fattening turkeys. Culling of 15865 turkeys has been completed on 12 december 2017 and all 17000 turkeys have been safely disposed of.
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 17000 8000 1135 15865 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 47.06% 6.68% 14.19% 100.00%
    *Removed from the susceptible population through death, destruction and/or slaughter
    Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive
    Epidemiological comments The National Reference Laboratory has sequenced HPAI subtype H5N8. A protection zone of 3 km and a surveillance zone of 10 km have been established.
    Control measures
    Measures applied
    • Movement control inside the country
    • Screening
    • Traceability
    • Official disposal of carcasses, by-products and waste
    • Stamping out
    • Zoning
    • Vaccination prohibited
    • No treatment of affected animals
    Measures to be applied
    • Disinfection
    Diagnostic test results
    Laboratory name and type Species Test Test date Result
    Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds polymerase chain reaction (PCR) 11/12/2017 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
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