| Information received on 11/11/2020 from Dr Christine Middlemiss, Chief Veterinary Officer, DEFRA, Department for Environment,Food and Rural Affairs , London, United Kingdom | |
|
Summary
| Report type |
Immediate notification |
| Date of start of the event |
05/11/2020 |
| Date of confirmation of the event |
09/11/2020 |
| Report date |
11/11/2020 |
| Date submitted to OIE |
11/11/2020 |
| Reason for notification |
Recurrence of a listed disease |
| Date of previous occurrence |
26/07/2017 |
| Manifestation of disease |
Sub-clinical infection |
| Causal agent |
Highly pathogenic influenza A virus |
| Serotype |
H5N8 |
| Nature of diagnosis |
Laboratory (basic), Laboratory (advanced) |
| This event pertains to |
a defined zone within the country | |
|
|
| Outbreak 1 (WB 2020/02) |
DEVON, DEVON, England |
| Date of start of the outbreak |
05/11/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Natural park |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Black Swan:Cygnus atratus(Anatidae) |
|
5 |
5 |
0 |
0 | |
| Affected population |
Wild Black Swans, unable to ascertain and provide the number of susceptible animals | |
| Summary of outbreaks |
Total outbreaks: 1 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Black Swan:Cygnus atratus(Anatidae) |
|
5 |
5 |
0 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Black Swan:Cygnus atratus(Anatidae) |
** |
** |
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 |
| |
|
|
Control measures
| Measures applied |
- Vaccination prohibited
- No treatment of affected animals
|
| Measures to be applied |
| |
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Weybridge (OIE Reference Laboratory) |
Black Swan |
gene sequencing |
09/11/2020 |
Positive |
| Weybridge (OIE Reference Laboratory) |
Black Swan |
reverse transcription - polymerase chain reaction (RT-PCR) |
08/11/2020 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |