| Information received on 07/11/2020 from Dr Christianne Bruschke, Chief Veterinary Officer , Agriculture, Nature and Food Quality, Ministry of Agriculture, Nature and Food Quality, The Hague, Netherlands | |
|
Summary
| Report type |
Immediate notification |
| Date of start of the event |
16/10/2020 |
| Date of confirmation of the event |
27/10/2020 |
| Report date |
07/11/2020 |
| Date submitted to OIE |
07/11/2020 |
| Reason for notification |
New strain of a listed disease in the country |
| Causal agent |
Highly pathogenic influenza A virus |
| Serotype |
H5N1 |
| Nature of diagnosis |
Clinical, Laboratory (advanced) |
| This event pertains to |
a defined zone within the country | |
|
|
| Outbreak 1 |
Hippolytishoef, Noord-Holland |
| Date of start of the outbreak |
16/10/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Other |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Eurasian Wigeon:Anas penelope(Anatidae) |
|
4 |
0 |
0 |
0 | |
| Affected population |
On October 16th living anas penelope (eurasian wigeon) were sampled in a duck decoy for scientific research, four (4) of the anas penelope (eurasian wigeon) were tested positive for H5N1 on 27 October at a National Reference Laboratory. | |
| Outbreak 2 |
Purmerend, Noord-Holland |
| Date of start of the outbreak |
28/10/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Other |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Greylag Goose:Anser anser(Anatidae) |
|
1 |
1 |
0 |
0 | |
| Affected population |
A wild bird was found dead in a wetland. | |
| Outbreak 3 |
Hallum, Friesland |
| Date of start of the outbreak |
31/10/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Other |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Charadriidae (unidentified):Charadriidae (incognita)(Charadriidae) |
|
1 |
1 |
0 |
0 | |
| Affected population |
On October 31st, one (1) numenius arquata (curlew) was found dead in a wetland area. On November 5th the National Reference Laboratory confirmed HPAI Virus H5N1 in the sample from the numenius arquata (curlew). | |
| Outbreak 4 |
Holwerd, Friesland |
| Date of start of the outbreak |
02/11/2020 |
| 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 |
1 |
0 |
0 | |
| Affected population |
On November 2nd, one (1) anas crecca (teal) was found dead in a wetland Area. On November 5th the National Reference Laboratory confirmed HPAI Virus H5N1 in the sample from the one (1) anas crecca (teal). | |
| Summary of outbreaks |
Total outbreaks: 4 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Eurasian Wigeon:Anas penelope(Anatidae) |
|
4 |
0 |
0 |
0 |
| Greylag Goose:Anser anser(Anatidae) |
|
1 |
1 |
0 |
0 |
| Charadriidae (unidentified):Charadriidae (incognita)(Charadriidae) |
|
1 |
1 |
0 |
0 |
| Common Teal:Anas crecca(Anatidae) |
|
1 |
1 |
0 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Eurasian Wigeon:Anas penelope(Anatidae) |
** |
** |
0.00% |
** |
| Greylag Goose:Anser anser(Anatidae) |
** |
** |
100.00% |
** |
| Charadriidae (unidentified):Charadriidae (incognita)(Charadriidae) |
** |
** |
100.00% |
** |
| Common Teal:Anas crecca(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 |
|
| Epidemiological comments |
The haemagglutinin (HA) is nearly identical to the HA of the H5N8 wild bird isolates reported in 2020. The other genes are of LPAI origin. | |
|
|
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 |
| Wageningen Bioveterinary Research Lelystad (National laboratory) |
Common Teal |
polymerase chain reaction (PCR) |
05/11/2020 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |
