Information received on 26/11/2020 from Dr Breda Hrovatin, Head, Animal Health and Animal Welfare Division, Ministry of Agriculture, Forestry and Food, Ljubljana, Slovenia
Summary
Report type
Immediate notification
Date of start of the event
17/11/2020
Date of confirmation of the event
23/11/2020
Report date
26/11/2020
Date submitted to OIE
26/11/2020
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
25/04/2017
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic influenza A virus
Serotype
H5N8
Nature of diagnosis
Laboratory (advanced)
This event pertains to
a defined zone within the country
New outbreaks (1)

Outbreak 1
Piran, Koper
Date of start of the outbreak
17/11/2020
Outbreak status
Resolved (25/11/2020)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)


2


Affected population
Two mute swans (Cygnus olor) found dead (one on 17 November 2020, and the other one on 19 November 2020) on the seashore in the municipality of Piran. Both animals were found one kilometer apart.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

**
2


Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Mute Swan:Cygnus olor(Anatidae)
**
**
**
**
*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
National Veterinary Institute (National laboratory)
Mute Swan
real-time PCR
23/11/2020
Positive
National Veterinary Institute (National laboratory)
Mute Swan
real-time PCR
25/11/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.