Highly pathogenic avian influenza,
Italy
Information received on 05/09/2013 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. 4
Date of start of the event 10/08/2013
Date of confirmation of the event 14/08/2013
Report date 05/09/2013
Date submitted to OIE 05/09/2013
Date event resolved 08/09/2013
Reason for notification New strain of a listed disease
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H7N7
Nature of diagnosis Clinical, Laboratory (basic)
This event pertains to a defined zone within the country
Related reports Immediate notification (15/08/2013)
Follow-up report No. 1 (21/08/2013)
Follow-up report No. 2 (23/08/2013)
Follow-up report No. 3 (28/08/2013)
Follow-up report No. 4 (05/09/2013)
Follow-up report No. 5 (18/09/2013)
New outbreaks (2)
Outbreak 1 Mordano, BOLOGNA, Emilia-Romagna
Date of start of the outbreak 03/09/2013
Outbreak status Resolved (08/09/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 98200 11 11 98189 0
Affected population The positivity regards a commercial layer hens farm located in the protection zone established around the 2nd outbreak in Mordano Municipality.
Outbreak 2 Bondeno, FERRARA, Emilia-Romagna
Date of start of the outbreak 04/09/2013
Outbreak status Resolved (05/09/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3 1 1 2 0
Affected population The positivity regards a backyard flock of free-range hens. During last week of August, five hens died and one of them on 1 September was delivered to the Laboratory and resulted positive to avian influenza type A/H7 at PCR.
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 98203 12 12 98191 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.01% 0.01% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments The National Reference Laboratory in Padova has confirmed H7 at RT-PCR. The farm in Mordano is already located in the restriction zones and depopulation will be carried out. Restriction zones have been established around the flock in Bondeno, a protection zone of 3 km and a surveillance zone of 10 km, the hens have been culled and the epidemiological investigation is on going.
Control measures
Measures applied
  • Movement control inside the country
  • Quarantine
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Screening
  • Disinfection / Disinfestation
  • Stamping out
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) 04/09/2013 Positive
Experimental Zooprophylactic Institute (IZSVe), PADOVA (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 05/09/2013 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations