Figure 4From: Secondary infection with Streptococcus suis serotype 7 increases the virulence of highly pathogenic porcine reproductive and respiratory syndrome virus in pigsPRRSV RNA. (a) PRRSV RNA levels in the lungs of all pigs in HP-PRRSV-infected and coinfected groups either after necropsy or death. The data from the coinfected group at 14 days post-inoculation (DPI) is the mean value of 8 pigs of the coinfected group that died between 10 and 15 DPI; no pigs from the coinfected group were necropsied on 21 DPI. (b) The PRRSV RNA levels in the brains of HP-PRRSV-infected and coinfected pigs.Back to article page