OIE: Highly pathogenic avian influenza, Italy

Information received on 21/07/2017 from Prof. Dr. Romano Marabelli, Chief Veterinary Officer, Secretary General, Ministry of Health, Rome, Italy
Summary
Report type Follow-up report No. 16
Date of start of the event 20/01/2017
Date of confirmation of the event 21/01/2017
Report date 21/07/2017
Date submitted to OIE 21/07/2017
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)
New outbreaks (2)
Outbreak 1 (HPAI_MN_2017_17) Roncoferraro, MANTOVA, LOMBARDIA
Date of start of the outbreak 19/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 20560 18871 1689
Affected population The positivity regards a commercial farm of fattening turkeys.
Outbreak 2 (HPAI_MN_2017_18) Castel Goffredo, MANTOVA, LOMBARDIA
Date of start of the outbreak 19/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3 3 3 0 0
Affected population The positivity regards a backyard farm
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 20563 18874 1692 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 91.79% 8.23% 8.96% **
*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 reverse transcription - polymerase chain reaction (RT-PCR) 20/07/2017 Positive
Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 20/07/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.