| lack of porcine circovirus 4 genome detection in pig samples from italy and spain. | the genus circovirus includes several species and mostly causes asymptomatic infections. porcine circovirus 2 (pcv-2) and, with increasing evidence, porcine circovirus 3 (pcv-3), have been associated with different clinical conditions all over the world. in 2019, a new porcine circovirus (pcv-4) was identified from diseased animals in china. because of the lessons learned from pcv-2 and pcv-3, it appears mandatory to investigate the actual distribution of this new virus and its potential associa ... | 2020 | 32486429 |