Maarja Kristian, Veterinary and Food Board, Estonia, African swine fever in Estonia
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Transcript of Maarja Kristian, Veterinary and Food Board, Estonia, African swine fever in Estonia
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M A A R J A K R I S T I A N
H E L E N P R O M M I K
1
African swine fever in Estonia
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Veterinary and Food Board 2
Director General
VETERINARY AND FOOD BOARD
Deputy Director General
Lawyer
Animal Health,
Welfare and
Feedingstuffs Dept.
Animal Health Office
Animal Welfare Office
Feedingstuffs Office
Food Dept.
Office for Food of
Animal Origin
Office for Retail, Organic
Farming and Food of Non-
animal Origin
Trade, Import and
Export Dept.
Surveillance and Control
Office
Luhamaa BIP
Muuga and Baldiski BIP
Narva BIP
Animal Breeding and
Market Regulation
Dept.Office of Animal Breeding
Office of Genetic
Resources
Market Regulation Office
Alcohol Regulation Office
General Dept.
Accounting Office
Budgeting Office
Personnel Office
Administrative Office
IT Office
County Veterinary Centres (15) Authorised Veterinarians
Deputy Director General
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African swine fever (ASF) 3
African swine fever (ASF) is a highly contagious hemorrhagic viral disease of pigs, warthogs, European wild boar and American wild pigs
All age groups are equally susceptible
ASF is characterized by high fever, loss of appetite, haemorrhages in the skin and internal organs
Death in 2-10 days on average
Mortality can be up to 100%
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Why has ASF spread so widely? 4
Farms not following biosecurity rules
Violation of veterinary rules
Human error
Spreading with wild boars –hard to control
Virus is very resistant in the environment and hence fast and total elimination is hard to achieve:
In frozen meat – for many years
In salted meat for 310 days
In smoked meat for 6 months
In soil more than 6 months
In carcasses for 2-3months
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ASF in wild boars 5
Population dynamics for the years 2009-2013
Wild boar density
Hunters estimation for the number of wild boar (2014): 19 710
*Source of information: Estonian Environment
Agency
Wild boar population
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Chronology (1) 6
First case of wild boar:
On 2nd September 2014 one wild boar piglet was found dead in Valga distric, Hummuli parish, 6 km from the Latvian border
Samples taken: spleen, tonsils, kidneys
Preliminary results from National Reference Laboratory (RT-PCR, ELISA)
On 5th September confirmation from EU reference laboratory for African swine fever: RT-PCR positive, IPT positive
ASFV belongs to genotype II
Possible source of infection: movement of infected wild board from infected area (Latvia)
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Chronology (2) 7
Location of the first case
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Chronology (3) 8
Second case:
On 7th of September 2014 one dead wild boar was found in Viljandi district, Tarvastu parish, 25 km from the first wild boar location
Confirmation from NRL on 9th of September
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Chronology (4) 9
3rd case:
Strangely behaved wild boar was shot in Ida-Viru county on 14th of September 2014, Lüganuse parish, 220 km from the second wild boar case location
Source of infection: unknown, possible human interaction
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Map with the locations of 3 cases/outbreaks 10
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Following actions 11
Measures according to Council Directive 2002/60/EC have been applied:
Establishing infected area – 200 km2
Testing of wild boars
Restrictions to pig farms in infected area
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By the end of 2014 (1) 12
Positive cases and infected areas
Location
Number of positive wild boars
Case no 1/Infected area 1 15
Case no 2/Infected area 2 47
Case no 3/Infected area 3 3
Case no 4/Infected area 4 1
Case no 5/Infected area 5 5
Case no 6/Infected area 6 1
Case no 7/Infected area 7 1
TOTAL 73
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By the end of 2014 (2) 13
7 infected areas had been established
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ASF in wild boars – 2015 Infected areas
14
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ASF in wild boars – 2015 laboratory testing (as of
08.11.2015) (1)
15
In total 6683 tested wild boars
682 found dead
5995 hunted
6 culled
2014-2015 736 positive wild boars
No of infected area
No positive wild boars in
2014
No of positive wild boars in 2015
Total number of positive wild boars
2014-2015
1 12 30 42
2 47 130 177
3 3 20 23
4 1 39 40
5 8 58 66
6 1 46 47
7 1 5 6
8 40 40
9 12 12
10 12 12
11 64 64
12 20 20
13 2 2
14 12 12
15 36 36
16 117 117
17 13 13
18 3 3
19 2 2
20 9 9
21 1 1
22 4 4
Total 73 663 736
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ASF in domestic pigs 1st case (1)
16
In the middle of July the owner (Valga county) noticed the continuous loss of appetite
The owner notified authorized veterinarian that her pig has no appetite, is depressed and skin has turned red
By the morning of 18th of July the pig had died
Authorized veterinarian informed animal health inspector in county veterinary centre who isnpected the farm:
Autopsy: abnormal enlargement of spleen
Samples: blood, kidneys, spleen
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ASF in domestic pigs 1st case (2)
17
On 20.07 Veterinary and Food Laboratory confirmed ASF diagnose
Measures taken by VFB:
Restrictions on the farm, epidemiological investigation, notification
Zoning and restrictions on the farms in the zones
Destruction of the carcass in the rendering plant
Cleaning and disinfection of the farm
Possible source of the infection: human
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ASF in domestic pigs 1st case (3)
18
Location of the farm and zones
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ASF in domestic pigs 2nd and 3rd case (1)
19
On 16th of July the owner noticed depression and loss of appetite in one of his pig farms, on the 18th of July he notices the same clinical signs in his other pig farm. Some pigs had already died In total 546 pigs were kept in two farms
On 19th of July veterinarians visited both farms and carried out clinical examination and took samples: Blood, kidney, spleen
On 20th of July Veterinary and Food Laboratory confirmed ASF diagnose
Measures taken by VFB: Restrictions on the farm, epidemiological investigation Zoning and restrictions on the farms in the zones Destruction of the carcasses in the rendering plant Cleaning and disinfection of the farm
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ASF in domestic pigs 2nd and 3rd case (2)
20
Location of the farms and zones
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21
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ASF in domestic pigs Current situation (1)
22 No of the outbreak Location
Date of the confirmation No of culled pigs
1 Valga county 21.07.2015 1
2 Viljandi county 21.07.2015 355
3 Viljandi county 21.07.2015 191 4 Viljandi county 28.07.2015 6
5 Tartu county 30.07.2015 1186 + (145)
6 Järva county 30.07.2015 483
7 Valga county 31.07.2015 3
8 Lääne-Viru county 04.08.2015 2
9 Viljandi county 05.08.2015 2149
10 Jõgeva county 08.08.2015 6426
11 Võru county 12.08.2015 1868
12 Viljandi county 12.08.2015 3072
13 Valga county 19.08.2015 5
14 Jõgeva county 20.08.2015 2329
15 Tartu county 25.08.2015 3804
16 Valga county 25.08.2015 120
17 Viljandi county 29.08.2015 15
18 Võru county 22.09.2015 104 (cross-breed)
Total 22 119 (+145)
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ASF in domestic pigs Current situation (2)
23
Map with surveillance zones of 18 infected farms
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Cooperation 24
National Disease Control Centre meeting
Local Disease Control Centre meeting
Several meetings with hunting organizations, pig farmers
Biosecurity
Hunting
Additional feeding
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Hunting, feeding 25
According to the decree of Envirnomental Board:
Bating is not allowed during the period of 01.10.2015-30.04.2016
Hunting from hides – bating is allowed (100 kg per slot, on the fround 10 kg of feed)
Driven hunts are allowed ( it was not allowed since autumn 2014)
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Preventive/control measures (1) 26
All live pig transport vehicles from Latvia, Lithuania, Poland, Russian Federation and Belarus have 48 hours standstill before entering the farm and new loading
Additional cleaning and disinfection on the territory of Estonia must be carried out and proved with documents
Import ban for non-heat treated feed from the infected areas in Latvia, Lithuania, Poland, Russian Federation and Belarus
Luhamaa BIP (approved for live animal imports)- documentary and physical checks for cleaning and disinfection
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Preventive/control measures (2) 27
In cooperation with Customs – personal luggage checks
Awareness campaigns
Leaflets in 2 languages – posted directly to farmers
TV, radio, press notices
Special webpage http://www.agri.ee/et/seakatk
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Preventive/control measures (3) 28
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Challenges Destruction of carcasses (1)
29
Destruction of carcasses vs capacity of rendering plant
Capacity 50 tons
Need to destroy 350 tons from one farm
How? When?
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Challenges Destruction of carcasses (2)
30
Burial of carcasses Identification of the site
Burial (workers, skills, equipment)
Environmental protection
Concern from civilians
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Animal of the year 2015 – (wise) wild boar
31
Thank you for your attention!