Attenuation and Immunogenicity of a Live High Pathogenic PRRSV Vaccine Candidate with a 32-Amino Acid Deletion in the nsp2 Protein

Table 1

Development of viremia in inoculation pigs.

Groups	Days after inoculation						Days after challenge
	0	3	7	10	14	21	0	7	14
P5	0/10	10/10	10/10	10/10	7/10	3/5	—	—	—
P60	0/10	10/10	10/10	10/10	6/10	3/5	—	—	—
P80	0/10	10/10	10/10	10/10	8/10	0/5	0/5	0/5	0/5
P100	0/10	6/10	7/10	6/10	4/10	0/5	0/5	1/5	0/5
MOCK	0/10	0/10	0/10	0/10	0/10	0/5	0/5	5/5	5/5