Highly pathogenic avian influenza,
Netherlands
Information received on 18/11/2016 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 Follow-up report No. 2
Date of start of the event 08/11/2016
Date of confirmation of the event 10/11/2016
Report date 18/11/2016
Date submitted to OIE 18/11/2016
Date event resolved 16/05/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 04/2015
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus in wild birds
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (11/11/2016)
Follow-up report No. 1 (15/11/2016)
Follow-up report No. 2 (18/11/2016)
Follow-up report No. 3 (22/11/2016)
Follow-up report No. 4 (29/11/2016)
Follow-up report No. 5 (05/12/2016)
Follow-up report No. 6 (14/12/2016)
Follow-up report No. 7 (16/12/2016)
Follow-up report No. 8 (28/12/2016)
Follow-up report No. 9 (12/01/2017)
Follow-up report No. 10 (01/02/2017)
Follow-up report No. 11 (08/02/2017)
Follow-up report No. 12 (17/02/2017)
Follow-up report No. 13 (17/03/2017)
Follow-up report No. 14 (14/04/2017)
Follow-up report No. 15 (16/05/2017)
New outbreaks (4)
Outbreak 1 (HPAI 2016/03 WB) Slootdorp, Noord-Holland
Date of start of the outbreak 11/11/2016
Outbreak status Resolved (16/05/2017)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Great black-backed Gull:Larus marinus(Laridae) 2 2 0 0
Common Teal:Anas crecca(Anatidae) 1 1 0 0
Mew Gull:Larus canus(Laridae) 2 2 0 0
Black-headed Gull:Larus ridibundus(Laridae) 3 3 0 0
Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0
Common Shelduck:Tadorna tadorna(Anatidae) 1 1 0 0
Affected population Note: Black-headed gull now belongs to the genre Chroicocephalus ridibundus (formerly Larus ridibundus).
Outbreak 2 (HPAI 2016/04 WB) Werkendam, Noord-Brabant
Date of start of the outbreak 14/11/2016
Outbreak status Resolved (16/05/2017)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Tufted Duck:Aythya fuligula(Anatidae) 4 4 0 0
Outbreak 3 (HPAI 2016/06 WB) Bergplas, Zuid-Holland
Date of start of the outbreak 14/11/2016
Outbreak status Resolved (16/05/2017)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0
Outbreak 4 (HPAI 2016/05 WB) Oostzaan, Noord-Holland
Date of start of the outbreak 14/11/2016
Outbreak status Resolved (16/05/2017)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Anatidae (unidentified):Anatidae (incognita)(Anatidae) 3 3 0 0
Summary of outbreaks Total outbreaks: 4
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Great black-backed Gull:Larus marinus(Laridae) 2 2 0 0
Common Teal:Anas crecca(Anatidae) 1 1 0 0
Mew Gull:Larus canus(Laridae) 2 2 0 0
Black-headed Gull:Larus ridibundus(Laridae) 3 3 0 0
Tufted Duck:Aythya fuligula(Anatidae) 6 6 0 0
Common Shelduck:Tadorna tadorna(Anatidae) 1 1 0 0
Anatidae (unidentified):Anatidae (incognita)(Anatidae) 3 3 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Great black-backed Gull:Larus marinus(Laridae) ** ** 100.00% **
Common Teal:Anas crecca(Anatidae) ** ** 100.00% **
Mew Gull:Larus canus(Laridae) ** ** 100.00% **
Black-headed Gull:Larus ridibundus(Laridae) ** ** 100.00% **
Tufted Duck:Aythya fuligula(Anatidae) ** ** 100.00% **
Common Shelduck:Tadorna tadorna(Anatidae) ** ** 100.00% **
Anatidae (unidentified):Anatidae (incognita)(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
  • Unknown or inconclusive
Epidemiological comments H5N8 was confirmed in 18 wild birds found in wetland areas near Slootdorp, Werkendam, Oostzaan and Bergplas.
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
Wageningen Bioveterinary Research, Lelystad (National laboratory) Anatidae (unidentified) polymerase chain reaction (PCR) 16/11/2016 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Black-headed Gull polymerase chain reaction (PCR) 16/11/2016 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Common Shelduck polymerase chain reaction (PCR) 16/11/2016 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Common Teal polymerase chain reaction (PCR) 16/11/2016 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Great black-backed Gull polymerase chain reaction (PCR) 16/11/2016 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Mew Gull polymerase chain reaction (PCR) 16/11/2016 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Tufted Duck polymerase chain reaction (PCR) 16/11/2016 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations