absence of circulation of bluetongue virus serotype … · 2016-10-17 · november lugo terra cha 1...
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ABSENCE OF CIRCULATION OF BLUETONGUE VIRUS SEROTYPE 8
IN CAMPO DE GIBRALTAR LVU SINCE NOVEMBER 2010
SCoFCAHSCoFCAH 15th 15th JanuaryJanuary 20132013
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BTVBTV--8 EPIDEMIOLOGICAL EVOLUTION IN SPAIN8 EPIDEMIOLOGICAL EVOLUTION IN SPAIN
First incursion: January 2008
Origin: trade movements
Early detection and implementation of proper measures led to a quick control, spatially and temporarily, of the problem:
Only 36 outbreaks (between 2008 and 2010)
location of the outbreaks restricted to three specific areas of Spain (Cantabria, Galicia and South of Andalucía)
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BTVBTV--8 SPAIN 20088 SPAIN 2008
29TOTAL
1Terra ChaLugoNovember
16CartamaMálagaOctober-December
12SolaresCantabriaJanuary
OUTBREAKSLVUPROVINCEDATE
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BTVBTV--8 SPAIN 20098 SPAIN 2009
6TOTAL
1Campo de GibraltarCádizMarch
2Málaga (Guadalhorce Occidental)Málaga
3Cartama (Guadalhorce Oriental)Málaga
January-February
OUTBREAKSLVUPROVINCEDATE
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BTVBTV--8 SPAIN 20108 SPAIN 2010
1TOTAL
1Campo de GibraltarCádizNovember
OUTBREAKSLVUPROVINCEDATE
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Considering:
The favorable epidemiological evolution
The absence of BTV-8 circulation since February 2009 in the Spanish Mainland (but Campo de Gibraltar LVU)
Rapport presented at 7-8 Mai 2012 Scofcah:
BTV-8 freedom declaration in Spanish mainland but Campo de Gibraltar LVU
Not possible to declare freedom in Campo de Gibraltar LVU until January 2013
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BT MONITORING, SURVEILLANCE AND CONTROL BT MONITORING, SURVEILLANCE AND CONTROL PROGRAM IN SPAIN 2010PROGRAM IN SPAIN 2010--20122012
Serologic and virologic surveillance:
Sentinel animals over 4 month old (cattle, sheep, goats)
Not vaccinated, seronegative
Prevalence 2%, 95% IC: 149 samples per province
6 holdings per province
1 month of permanence in the province
*Corresponding to the 2010 single outbreak of BTV-8 in November (Campo de Gibraltar)
(1): in accordance to the minimum number of samples stablished in the Bluetongue National Surveillance Program
21*00199,100TOTAL
000049,4342012
000074,8332011
210074,8332010
Ovine BTV-8 positive animals
Ovine BTV-8 positive holdings
Bovine BTV-8 positive animals
Bovine BTV-8 positive holdings
Minimumsamples (1)Autonomous Region
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OUTCOME OF BTVOUTCOME OF BTV--8 SURVEILLANCE PROGRAM8 SURVEILLANCE PROGRAMIN CAMPO DE GIBRALTAR LVUIN CAMPO DE GIBRALTAR LVU
* Corresponding to the 2010 single outbreak of BTV-8 in November
(2): total number of agent identification tests performed
(1): total number of serologic tests performed
21*002,4211,2561,165TOTAL
00009595034562012
00008144074072011
21006483463022010
Ovine-caprine BTV-
8 positive animals
Ovine-caprine BTV-
8 positive holdings
Bovine BTV-8 positive animals
Bovine BTV-8 positive holdings
Test totalVirology test (2)
Serology test (1)Year
DOMESTIC ANIMALS SURVEILLANCE PROGRAM IN CAMPO DE GIBRALTAR LVU
*The positive animals were deers older than 12 months
(1): SN (seroneutralization test)
03*82142TOTAL
0014142012
0060572011
0Jan-10Deer38712010
DATESPECIESPOSITIVE (2)
PCR BTV-8 POSITIVE ANIMALS
SN (1) BTV-8 POSITIVE ANIMALSPCRELISAYEAR
WILD ANIMALS SURVEILLANCE PROGRAM IN CAMPO DE GIBRALTAR LVU
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BT MONITORING, SURVILLANCE AND CONTROL BT MONITORING, SURVILLANCE AND CONTROL PROGRAM IN SPAIN 2009PROGRAM IN SPAIN 2009--20122012
Clinical surveillanceTo reinforce the compulsory passive clinical surveillance and the serological-virological surveillance.
Sheep
150 holdings per Autonomous region per year are randomly selected
Entomological surveillance2010: 88 permanent traps
2011: 75 permanent traps
Since 01/07/2012: 28 permanent traps
Vaccination programcompulsory until 01/07/2011
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BTVBTV--8 SITUATION IN NEARBY COUNTRIES8 SITUATION IN NEARBY COUNTRIES
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CONCLUSIONSCONCLUSIONSNo outbreaks of BTV-8 in Campo de Gibraltar LVU since November 2010
European Countries that has been affected by BTV-8, with some exceptions, are free
Countries more geographically close to Spain: Portugal, France and Morocco are free of BTV-8.
The monitoring and surveillance program implemented in Spain observes the requirements set out in Annex I of Regulation 1266/2007 as regards the monitoring in order to provide the Commission with substantiatedinformation demonstrating the absence of bluetongue virus circulation in an epidemiological relevant geographical area during a period of two years
Program’s results in the last 2 years (including 3 full vector activity period): there have no been BTV-8 circulation in Campo de Gibraltar LVU
Spain is in position to declare BTV-8 freedom in Campo de Gibraltar LVU
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PROPOSED RESTRICTED ZONESPROPOSED RESTRICTED ZONES