Information received on 23/12/2020 from Dr Davide Lecchini, Chief Veterinary Officer, Directorate General for Veterinary Health and Veterinary MedicinalProducts (DGSAF), Ministry of Health, ROME, Italy
Summary
Report type
Follow-up report No. 4
Date of start of the event
12/11/2020
Date of confirmation of the event
20/11/2020
Report date
23/12/2020
Date submitted to OIE
23/12/2020
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
26/01/2018
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic influenza A virus
Serotype
H5N8
Nature of diagnosis
Clinical, Laboratory (basic), Necropsy
This event pertains to
the whole country
Related reports
Immediate notification (21/11/2020)
Follow-up report No. 1 (27/11/2020)
Follow-up report No. 2 (04/12/2020)
Follow-up report No. 3 (16/12/2020)
Follow-up report No. 4 (23/12/2020)
New outbreaks (1)

Outbreak 1 (HPAIWB_10_2020_RO)
Porto Viro Valle cà pasta, ROVIGO, Veneto
Date of start of the outbreak
12/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Common Teal:Anas crecca(Anatidae)

2
0
2
0
Affected population
Highly pathogenic avian influenza H5N8 viruses have been detected in two wigeons (Mareca penelope), shot in a hunting area.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Common Teal:Anas crecca(Anatidae)

2
0
2
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Common Teal:Anas crecca(Anatidae)
**
**
0.00%
**
*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
Vaccination prohibited
No treatment of affected animals
Measures to be applied
No other measures
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
Experimental Zooprophylactic Institute (IZS), Venezie - Padova (National laboratory)
Common Teal
polymerase chain reaction (PCR)
18/12/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.