Characterization and Pathogenicity of the Novel Porcine Reproductive and Respiratory Syndrome Virus 1 Strain SL-01 in China

Table 2

Sows delivery data after challenge.

Groups	Mock	SL-01
Challenge virus	DMEM	Virus cultures
Piglets, number per litter
Total born	11/13/15	11/13/10
Live born	9/11/14	8/10/9
Still born	8/10/11	6/5/7
Mummified	0/0/0	1/1/1
Light (<1 kg)	2/2/1	2/3/2
Sow abortion	0/3 (0%)	0/3 (0%)
Sow survival	3/3 (100%)	3/3 (100%)
Fetal PRRSV virus load	Negative	Positive