Studies on the distribution of PRRSV in four 45-day-old SPF pigs infected artificially with PRRSV ATCC VR-2332 was performed by using the probe.

• 应用该探针对4头鼻内人工感染ATCC VR-2332的45日龄SPF猪感染后不同时间体内的PRRSV分布进行了研究。