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Volume 19, Number 7—July 2013
Dispatch

Schmallenberg Virus among Female Lambs, Belgium, 2012

François Claine, Damien Coupeau, Laetitia Wiggers, Benoît Muylkens, and Nathalie KirschvinkComments to Author 
Author affiliations: Namur Research Institute for Life Sciences, University of Namur, Namur, Belgium

Main Article

Table

Time course of Schmallenberg virus spreading among female lambs born in late autumn and in January 2013 assessed by RT-q PCR and seroneutralization *

Date of blood sampling 2012
Jul 11 Jul 25 Aug 8 Aug 22 Sep 5 Sep 17 Oct 3 Oct 17
No. (%) cumulative positive RT-qPCR results at each sampling date
Lambs born in autumn 2012† 0 3 (8) 5 (13) 11 (29) 25 (66) 30 (79) 36 (95) 38 (100)
Lambs born in January 2013‡ 0
0
0
5 (42)
9 (75)
11 (92)
12 (100)
12 (100)
No. (%) cumulated positive seroneutralization results at each sampling date
Lambs born in autumn 2012† 0 0 3 (8) 8 (21) 18 (47) 22 (58) 33 (87) 35 (92)
Lambs born in January 2013‡ 0 0 0 0 2 (17) 2 (17) 6 (50) 8(67)

*Cumulated positive results obtained between July and October 2012 are expressed as absolute numbers and percentages.RT-qPCR results were considered positive if cycle threshold value was <40. Seroneutralization results were considered positive if log2 50% effective dose values were > 3.5. RT-qPCR,real-time reverse transcription quantitative PCR.
†n=38.
‡n=12.

Main Article

Page created: June 18, 2013
Page updated: June 18, 2013
Page reviewed: June 18, 2013
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