Horses have been identified as the intermediate hosts, transmitting infection to humans through close contact during care or necropsy of the ill or dead horses.
马被确认是中间宿主，由于在照护或剖检病马或死马期间的密切接触，此病毒传播至人。
2
But the peak of contact pressure between rolls forms when the intermediate roll shifts, which leads local wear of rolls and quality defects of strip.