| Information received on 24/01/2018 from Dr Christianne Bruschke, Chief Veterinary Officer , Ministry of Economic Affairs, Ministry of Economic Affairs, The Hague, Netherlands | |
|
Summary
| Report type |
Follow-up report No. 2 |
| Date of start of the event |
09/12/2017 |
| Date of confirmation of the event |
13/12/2017 |
| Report date |
24/01/2018 |
| Date submitted to OIE |
24/01/2018 |
| Reason for notification |
Recurrence of a listed disease |
| Date of previous occurrence |
16/05/2017 |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Highly pathogenic avian influenza virus |
| Serotype |
H5N6 |
| Nature of diagnosis |
Clinical, Laboratory (advanced) |
| This event pertains to |
a defined zone within the country |
| Related reports |
Immediate notification (15/12/2017)
Follow-up report No. 1 (22/12/2017)
Follow-up report No. 2 (24/01/2018)
| |
|
|
| Outbreak 1 (HPAI WB H5N6 2017-04) |
Elburg, GELDERLAND |
| Date of start of the outbreak |
18/12/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Village |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Mute Swan:Cygnus olor(Anatidae) |
|
4 |
4 |
|
| | |
| Outbreak 2 (HPAI WB H5N6 2017-05) |
De Kreupel, NOORD-HOLLAND |
| Date of start of the outbreak |
21/12/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Village |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Great black-backed Gull:Larus marinus(Laridae) |
|
1 |
1 |
|
|
| Black-headed Gull:Larus ridibundus(Laridae) |
|
1 |
1 |
|
| | |
| Outbreak 3 (HPAI CB H5N6 2018-01) |
Rhoon, ZUID-HOLLAND |
| Date of start of the outbreak |
20/01/2018 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Backyard |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
32 |
2 |
0 |
32 |
0 | |
| Affected population |
Mixed species of non-poultry birds | |
| Summary of outbreaks |
Total outbreaks: 3 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Mute Swan:Cygnus olor(Anatidae) |
|
4 |
4 |
|
|
| Great black-backed Gull:Larus marinus(Laridae) |
|
1 |
1 |
|
|
| Black-headed Gull:Larus ridibundus(Laridae) |
|
1 |
1 |
|
|
| Birds |
32 |
2 |
0 |
32 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Mute Swan:Cygnus olor(Anatidae) |
** |
** |
100.00% |
** |
| Great black-backed Gull:Larus marinus(Laridae) |
** |
** |
100.00% |
** |
| Black-headed Gull:Larus ridibundus(Laridae) |
** |
** |
100.00% |
** |
| Birds |
6.25% |
0.00% |
0.00% |
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 |
This H5N6 subtype is a reassortment linked to H5N8 and not the Asian zoonotic H5N6. | |
|
|
Control measures
| Measures applied |
- Vaccination permitted (if a vaccine exists)
- No treatment of affected animals
|
| Measures to be applied |
| |
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Erasmus University (Local laboratory) |
Black-headed Gull |
polymerase chain reaction (PCR) |
23/12/2017 |
Positive |
| Erasmus University (Local laboratory) |
Great black-backed Gull |
polymerase chain reaction (PCR) |
23/12/2017 |
Positive |
| Wageningen Bioveterinary Research, Lelystad (National laboratory) |
Birds |
polymerase chain reaction (PCR) |
22/01/2018 |
Positive |
| Wageningen Bioveterinary Research, Lelystad (National laboratory) |
Greylag Goose |
polymerase chain reaction (PCR) |
22/12/2017 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |