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Netherlands: `Mild' H5 Avian Flu Reported In Deurne - October 28, 2016 - H5N2

sharon sanders

Editor-in-Chief & President
Friday, October 28, 2016

Netherlands: `Mild' H5 Avian Flu Reported In Deurne

















#11,856



From the Netherlands this morning we have an announcement of an outbreak of reportedly `Mild' H5 bird flu on a poultry farm in Deurne (see map above).
At this point, we don't have a complete subtype identified, and it will probably take a day or so before we get a full description of the virus. The assumption at this time this is an LPAI H5 virus.
There are two broad categories of avian influenza; LPAI (Low Pathogenic Avian Influenza) and HPAI (Highly Pathogenic Avian Influenza).
  • LPAI viruses are quite common in wild birds, cause little illness, and only rarely death. They are not considered to be a serious health to public health. The concern is (particularly with H5 & H7strains) that LPAI viruses have the potential to mutate into HPAI strains.
  • HPAI viruses are more dangerous, can produce high morbidity and mortality in wild birds and poultry, and can sometimes infect humans with serious result. The type of bird flu scientists have been watching closely for the past decade has been HPAI H5N1 (and to a lesser extent HPAI H7s & H9s).
Before the middle of the last decade, there was no uniform requirement to report or track LPAI infections. That changed in 2006 when the OIE made reporting of LPAI H5 & H7 viruses mandatory.

This from the Netherlands Ministry of Economic Affairs.
Mild bird flu in Deurne

News item | 28-10-2016 | 10:55

In Deurne (Noord-Brabant) is a poultry farm with 11,000 turkeys bird flu (avian influenza, AI) established. The company also 3,500 pheasants and 2,000 meat ducks housed. These animals are housed outside. It is probably a mild H5 variant.
Because a low pathogenic (mild) H5 variant can mutate to a highly pathogenic (highly contagious and fatal for poultry) variant, the company has both a low- be culled as a highly pathogenic variant. This is based on European rules. The culling is carried out by the Dutch Food and Goods Authority (NVWA). measures

From October 28, 2016 at 11:30 am there is a zone of over one kilometer around the holding in Deurne a ban on transporting poultry, eggs, poultry manure and used bedding. Within the area there are three other poultry farms. These companies are sampled and tested for avian influenza.
Posted by Michael Coston at 7:52 AM
 
[TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD]

[TD="width: *, align: left"] Low pathogenic avian influenza (poultry),
Netherlands

[/TD]
[TD="width: 1%, align: right"] [/TD]
[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD="class: topbigtabletitle27"]Information received on 28/10/2016 from Dr Christianne Bruschke, Chief Veterinary Officer , Ministry of Economic Affairs, Ministry of Economic Affairs, The Hague, Netherlands[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] Summary
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th, width: 10%"]Report type[/TD]
[TD="width: 30%"]Immediate notification[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]26/10/2016[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]27/10/2016[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]28/10/2016[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]28/10/2016[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Reoccurrence of a listed disease[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]13/08/2015[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Sub-clinical infection[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Low pathogenic avian influenza virus[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Laboratory (advanced)[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] New outbreaks (1)
[TABLE="class: TableFoyers, width: 918"]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left, align: left"]Outbreak 1 (2016/02)[/TD]
[TD="class: filtrer_th ta_left"]Deurne, NOORD-BRABANT[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Date of start of the outbreak[/TD]
[TD]26/10/2016[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Outbreak status[/TD]
[TD]Continuing (or date resolved not provided)[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Epidemiological unit[/TD]
[TD]Farm[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Affected animals[/TD]
[TD] [TABLE="class: TableFoyers, width: 605"]
[TR]
[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Susceptible[/TD]
[TD="class: filtrer_th ta_center last"]Cases[/TD]
[TD="class: filtrer_th ta_center last"]Deaths[/TD]
[TD="class: filtrer_th ta_center last"]Destroyed[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]17009[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]17009[/TD]
[TD="class: ta_right"]0[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left, align: left"]Summary of outbreaks[/TD]
[TD="class: filtrer_th ta_left"]Total outbreaks: 1[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Total animals affected[/TD]
[TD] [TABLE="class: TableFoyers, width: 744"]
[TR]
[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Susceptible[/TD]
[TD="class: filtrer_th ta_center last"]Cases[/TD]
[TD="class: filtrer_th ta_center last"]Deaths[/TD]
[TD="class: filtrer_th ta_center last"]Destroyed[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]17009[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]17009[/TD]
[TD="class: ta_right"]0[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Outbreak statistics[/TD]
[TD] [TABLE="class: TableFoyers, width: 744"]
[TR]
[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Apparent morbidity rate[/TD]
[TD="class: filtrer_th ta_center last"]Apparent mortality rate[/TD]
[TD="class: filtrer_th ta_center last"]Apparent case fatality rate[/TD]
[TD="class: filtrer_th ta_center last"]Proportion susceptible animals lost*[/TD]
[/TR]
[TR]
[TD]Birds[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]-[/TD]
[TD="class: ta_right"]100.00%[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left, colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
[/TR]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] Epidemiology
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left"]Source of the outbreak(s) or origin of infection[/TD]
[TD]
  • Unknown or inconclusive
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Epidemiological comments[/TD]
[TD]Monitoring blood samples were positive on H5. This is confirmed by PCR test. There were no clinical signs. A one-kilometer restriction zone was established on October 28th, 2016. There are four other premises in this zone. These premises have been screened.[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[TD] Control measures
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left"]Measures applied[/TD]
[TD]
  • Movement control inside the country
  • Screening
  • Stamping out
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Measures to be applied[/TD]
[TD]
  • No other measures
[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] Diagnostic test results
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer_th ta_left"]Laboratory name and type[/TD]
[TD="class: filtrer_th ta_left"]Species[/TD]
[TD="class: filtrer_th ta_left"]Test[/TD]
[TD="class: filtrer_th ta_left"]Test date[/TD]
[TD="class: filtrer_th ta_left last"]Result[/TD]
[/TR]
[TR]
[TD="class: filtrer"]Wageningen Bioveterinary Research, Lelystad (National laboratory)[/TD]
[TD="class: filtrer"]Birds[/TD]
[TD="class: filtrer"]polymerase chain reaction (PCR)[/TD]
[TD="class: filtrer"]27/10/2016[/TD]
[TD="class: filtrer cb-centree last"]Positive[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] Future Reporting
[TABLE="class: TableFoyers, width: 917"]
[TR]
[TD="class: filtrer"]The event is continuing. Weekly follow-up reports will be submitted.[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]

...
http://www.oie.int/wahis_2/public/w...?page_refer=MapFullEventReport&reportid=21386
 
Bird flu virus in mixed poultry farm in Deurne typed as H5N2

Published on November 4, 2016

Follow-up studies of WBVR show that the avian flu virus on Thursday, October 27th J.L. was confirmed, is a type of H5N2 virus. This virus was detected at a mixed poultryfarm with turkeys, ducks and pheasants in Deurne.

The genetic material of an H5 virus was confirmed with the aid of a PCR-test in the turkey flock. It is a low pathogenic (LPAI) variant of the bird flu virus. Then, through research (sequencing) the determined N-subtype. This H5N2 virus was also confirmed in the ducks.

Further analysis of the sequence of a portion of the HA and N-segment shows a relationship with variations of avian influenza viruses that circulate in Europe in wild birds. There does not seem to be directly related to other outbreaks in poultry in Europe.
 
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