Highly pathogenic avian influenza,
Italy
Information received on 28/07/2017 from Dr Silvio Borrello, Chief Veterinary Officer, Food Safety and Collegial Bodies for Health Protection, Ministère de la Santé, Department for Veterinary Public Health, Rome, Italy
Summary
Report type Follow-up report No. 17
Date of start of the event 20/01/2017
Date of confirmation of the event 21/01/2017
Report date 28/07/2017
Date submitted to OIE 28/07/2017
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)
New outbreaks (3)
Outbreak 1 (HPAI_MN_2017_19) Castiglione delle Stiviere, MANTOVA, LOMBARDIA
Date of start of the outbreak 20/07/2017
Outbreak status Resolved (07/08/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 460000 460000 5000
Affected population The positivity regards a layer farm. Culling of 445589 laying hens has been completed on 07 Aug 2017 and all 479596 laying hens have been safely disposed of.
Outbreak 2 (HPAI_VR_2017_20) Albaredo d''''Adige, VERONA, VENETO
Date of start of the outbreak 23/07/2017
Outbreak status Resolved (29/07/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 17724 3120 1000 16724 0
Affected population The positivity regards a commercial farm of fattening turkeys. Culling of 16724 turkeys has been completed on 29 Jul 2017 and all 17724 turkeys have been safely disposed of.
Outbreak 3 (HPAI_VR_2017_21) Nogara, VERONA, VENETO
Date of start of the outbreak 26/07/2017
Outbreak status Resolved (31/07/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 12200 2800 120 12080 0
Affected population The positivity regards a commercial farm of fattening turkeys. Culling of 12080 turkeys has been completed on 31 Jul 2017 and all 12200 turkeys have been safely disposed of.
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 489924 465920 6120 28804 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 95.10% 1.25% 1.31% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
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
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • 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) 25/07/2017 Positive
Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds polymerase chain reaction (PCR) 27/07/2017 Positive
Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 21/07/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations