Table 4.

Clinical signs reported in PCV-3 PCR positive animals according to production phase in different clinical/pathological scenarios.

Disorders	Production phase	Clinical signs - disease	Control group-healthy animals	Reference
Reproductive	Sows	•Increase in the sow mortality; decrease in the conception rates; mummified fetuses •Aborted fetuses, stillborn •Abortion, mummified fetuses; reproductive failure; decrease of neonatal rate	NA NA NA	Palinski et al. (21) Faccini et al. (75) Ku et al. (70)
Respiratory	Lactation Weaning Weaning Fattening Fattening	•Dyspnea •Anorexia, fever, icterus, abdominal breathing •Cough, softly panting, abdominal breathing •Respiratory signs •Porcine respiratory disease complex (PRDC)	NA NA Yes* NA NA	Phan et al. (22) Shen et al. (99) Zhai et al. (87) Phan et al. (22) Kedkovid et al. (91)
Cardiovascular	Weaning	•Anorexia, weight loss, swollen joints	NA	Phan et al. (22)
Gastrointestinal	Weaning	•Diarrhea	Yes*	Zhai et al. (87)
Systemic	Weaning	•Wasting •Periweaning failure-to-thrive syndrome (PFTS)	Yes* Yes*	Stadejek et al. (77) Franzo et al. (100)
Neurological	Lactation Lactation	•Neurological signs •Congenital tremors	NA NA	Phan et al. (22) Chen et al. (101)
Others	Fattening Sows	•Rectal prolapse •PDNS	NA NA	Phan et al. (22) Palinski et al. (21)

NA, not available in the published study;

^*PCV-3 positivity in lower frequency than diseased animals.