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Table 1 Viral load in serum of acutely affected nursery piglets quantified by a commercial PRRSV qRT-PCR Kit (TaqMan®NA and EU PRRSV Reagents, Ambion, Carlsbad, USA)

From: Emergence of a virulent porcine reproductive and respiratory syndrome virus (PRRSV) 1 strain in Lower Austria

Sample ID

CT-value

PRRSV RNA copies/mL serum

32

16.02

2.2 x 109

33

15.99

2.3 x 109

34

18.41

4.8 x 108

35

16.02

2.2 x 109

36

17.26

1.1 x 109

37

14.99

4.3 x 109

38

20.39

1.4 x 108

39

18.98

3.3 x 108

40

17.51

8.6 x 108