non notifiable avian influenza h3 belgium · 2019-05-20 · federal agency for the safety of the...
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![Page 1: Non notifiable Avian Influenza H3 Belgium · 2019-05-20 · Federal Agency for the Safety of the Food Chain Current situation • 36 cases of non H5/H7 avian influenza confirmed by](https://reader033.vdocuments.mx/reader033/viewer/2022042115/5e92794e1488d5299d48dc32/html5/thumbnails/1.jpg)
Federal Agency for the Safety of the Food Chain
Non notifiable Avian Influenza H3
Belgium
PAFF Committee 13 May 2019
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Federal Agency for the Safety of the Food Chain
Timeline
• First case detected in January 2019
– In the framework of the avian influenza surveillance programme
– Flock of outdoor laying hens
– LPAI H3N1, but brain was positive in PCR
– Depopulation on initiative of the farmer
• 6 April: the same farm is infected again
• Quick rise of the number of cases since last week of April
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Federal Agency for the Safety of the Food Chain
Current situation
• 36 cases of non H5/H7 avian influenza confirmed by PCR
– 31 cases of H3 of which 6 already confirmed as H3N1
– 5 cases with low virus load couldn’t be typed up until now
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Federal Agency for the Safety of the Food Chain
Clinical symptoms
• Eggshell defects (discoloring)
• Depression
• Severe drop in egg production
• Severe drop in feed intake
• Increasing mortality (25-30%), up to 60%
• Sometimes slowly spreading
• Sometimes no clinical symptoms at all
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Federal Agency for the Safety of the Food Chain
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Federal Agency for the Safety of the Food Chain
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Federal Agency for the Safety of the Food Chain
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Federal Agency for the Safety of the Food Chain
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Federal Agency for the Safety of the Food Chain
The virus
• Avian influenza virus H3N1
• IVPI 0.13 : low pathogenic
• Genetically related to a strain isolated from a
wild bird in the Netherlands 2017
Not notifiable
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Federal Agency for the Safety of the Food Chain
Epidemiological investigation
• Clustering of cases in the provinces of West Flanders
and East Flanders
• No common link between the affected farms
• No common other pathogen that causes the disease
(IB, E. coli, …)
• Farms with breeders, laying hens, broilers and meat
turkeys
– H3 confirmed: 13 breeders, 15 laying hens, 3 turkeys
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Federal Agency for the Safety of the Food Chain
Confirmed H3 cases 10 May 2019
![Page 12: Non notifiable Avian Influenza H3 Belgium · 2019-05-20 · Federal Agency for the Safety of the Food Chain Current situation • 36 cases of non H5/H7 avian influenza confirmed by](https://reader033.vdocuments.mx/reader033/viewer/2022042115/5e92794e1488d5299d48dc32/html5/thumbnails/12.jpg)
Federal Agency for the Safety of the Food Chain
Confirmed H3 cases 10 May 2019
![Page 13: Non notifiable Avian Influenza H3 Belgium · 2019-05-20 · Federal Agency for the Safety of the Food Chain Current situation • 36 cases of non H5/H7 avian influenza confirmed by](https://reader033.vdocuments.mx/reader033/viewer/2022042115/5e92794e1488d5299d48dc32/html5/thumbnails/13.jpg)
Federal Agency for the Safety of the Food Chain
Measures (to be) taken
• No specific legislation in place
• Temporary legal measures are considered:
– Culling of the affected flocks with compensation?
– Slaughtering of the healthy flocks in the affected farms?
– Cleaning and disinfection of the affected farms
– No repopulation for at least 21 days
– Biosecurity measures
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Federal Agency for the Safety of the Food Chain
Thank you for your attention
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