| postweaning mortality in manitoba swine. | a case-control study to investigate the contribution of postweaning multisystemic wasting syndrome (pmws) and porcine circovirus type 2 (pcv-2) to deaths among piglets of nursery age (19 to 68 d) in manitoba indicated a significant positive association between pcv-2 infection and an increased mortality rate in nursery pigs. the clinical syndrome pmws was seldom recognized in case or control herds; however, pcv-2 infection was widespread at the herd level. other factors more strongly associated w ... | 2006 | 16850937 |