Information received on 21/11/2020 from Dr Davide Lecchini, Chief Veterinary Officer, Directorate General for Veterinary Health and Veterinary MedicinalProducts (DGSAF), Ministry of Health, ROME, Italy
Summary
Report type
Immediate notification
Date of start of the event
12/11/2020
Date of confirmation of the event
20/11/2020
Report date
21/11/2020
Date submitted to OIE
21/11/2020
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
H5
Nature of diagnosis
Clinical, Laboratory (basic), Necropsy
This event pertains to
the whole country
New outbreaks (2)

Outbreak 1
Campagna Lupia, Venezia, Veneto
Date of start of the outbreak
12/11/2020
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)

1
0
1
0
Outbreak 2
Porto Tolle, Rovigo, Veneto
Date of start of the outbreak
14/11/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mallard:Anas platyrhynchos(Anatidae)

1
0
1
0
Eurasian Wigeon:Anas penelope(Anatidae)

2
0
2
0
Summary of outbreaks
Total outbreaks: 2
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Common Teal:Anas crecca(Anatidae)

1
0
1
0
Mallard:Anas platyrhynchos(Anatidae)

1
0
1
0
Eurasian Wigeon:Anas penelope(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%
**
Mallard:Anas platyrhynchos(Anatidae)
**
**
0.00%
**
Eurasian Wigeon:Anas penelope(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
Epidemiological comments
HPAI H5 viruses belonging to the 2.3.4.4 B clade have just been detected in north-east Italy in four hunted wild birds, namely two wigeons (Mareca penelope) and one mallard (Anas platyrhynchos) sampled in a hunting area in Rovigo province (Cà Zuliani, Porto Tolle) and one common teal (Anas crecca) shot in a hunting area in Venice province (Valle Figheri, Campagnia Lupia). The HA sequence surrounding the cleavage site is highly related to that of HPAI currently circulating in Northern Europe. Identification of the NA subtype and characterization of the full genome is in process.

Control measures
Measures applied
Movement control inside the country
Screening
Control of wildlife reservoirs
Vaccination permitted (if a vaccine exists)
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 of the Venezie - Padova (National laboratory)
Common Teal
real-time PCR
20/11/2020
Positive
Experimental Zooprophylactic Institute of the Venezie - Padova (National laboratory)
Eurasian Wigeon
real-time PCR
20/11/2020
Positive
Experimental Zooprophylactic Institute of the Venezie - Padova (National laboratory)
Mallard
real-time PCR
20/11/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.