Italy - New outbreak of avian influenza HP H5N8: 30,700 laying hens, Bergamo

[Tori]

09/03/2018 – On 9 March, the National Reference Laboratory for Avian Influenza and Newcastle Disease confirmed as positive for Avian Influenza A virus subtype H5N8 a laying hen farm in Brescia province (Lombardy region). At the time of confirmation, the farm housed about 30,700 birds, reared in cages. The farm belongs to the same production company of the laying hen farm confirmed as positive for HPAI on 2 March. The positivity was detected after virological controls on the production company farms were carried out on 8 March. No evident clinical symptoms were observed in the farm. Culling procedures are ongoing. Further information will be provided as soon as available.

http://www.izsvenezie.com/avian-infl...italy-updates/

[Pathfinder]

Highly pathogenic avian influenza, Italy

Information received on 16/03/2018 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

Summary Report type Follow-up report No. 38 Date of start of the event 20/01/2017 Date of confirmation of the event 21/01/2017 Report date 16/03/2018 Date submitted to OIE 16/03/2018 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) Follow-up report No. 36 (23/01/2018) Follow-up report No. 37 (09/03/2018) Follow-up report No. 38 (16/03/2018)

New outbreaks (2)

Outbreak 1 (HPAI_BS_2018_2) Coccaglio, BRESCIA, LOMBARDIA Date of start of the outbreak 08/03/2018 Outbreak status Resolved (11/03/2018) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 30906 82 82 30824 0 Affected population The positivity regards a laying hens farm. Culling of 30824 laying hens has been completed on 11 March, 2018 and all 30906 animals have been safely disposed of.

Outbreak 2 (HPAI_BG_2018_3) Cologno al Serio, BERGAMO, LOMBARDIA Date of start of the outbreak 12/03/2018 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 150400 240 240 Affected population The positivity regards a commercial farm of fattening turkeys

Summary of outbreaks Total outbreaks: 2 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 181306 322 322 30824 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 0.18% 0.18% 100.00% ** *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

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 real-time PCR 08/03/2018 Positive Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds real-time PCR 12/03/2018 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=26197