molecular detection of porcine astrovirus in sichuan province, china. | porcine astrovirus (poastv) is widely distributed worldwide, and is highly prevalent among piglets with or without diarrhea, existing as at least five distinct lineages (poastv1-poastv5) within the genus mamastrovirus. however, our knowledge of the diversity and epidemiology of poastv in china is limited. | 2016 | 26739067 |