Figure 1From: Pathogenic characteristics of three genotype II porcine reproductive and respiratory syndrome viruses isolated from ChinaMean rectal temperatures following infection with HN-1/2008, YN-1/2008 and GX-1/2008. Rectal temperatures equal to or above 40.0°C were defined as fever. Fever lasting 3 or more days was defined as illness. There were an average of 6–7 days of high fever for pigs in groups B, C and E, and 2 days of high fever for pigs in group D.Back to article page