| low prevalence of porcine circovirus type 2 infections in farrowing sows and corresponding pre-suckling piglets in southern german pig farms. | porcine circovirus type 2 (pcv2) is the assumed causative agent of a number of different diseases summarized as porcine circovirus diseases (pcvd). the virus is shed via different se- and excretions of pcv2 infected pigs. transmission of the virus occurs horizontally and vertically either by oronasal or diaplacental infection. recent research emphasizes the importance of diaplacental pcv2 infection or the infection in early stages of the piglet's life attributable to excretion of pcv2 by the dam ... | 2016 | 27066711 |