TABLE 6.
PCV‐3 PCR detection in healthy pigs
| Clinical signs/lesions | Production phase | Tested samples | % (and proportion) of PCR positivity | Country | Reference |
|---|---|---|---|---|---|
| Asymptomatic | Weaning/growing/finishing | Oral fluids | 43.4% (142/327) | South Korea | Kwon et al., 2017 |
| Asymptomatic | Sows/fetuses | Tissues | 59.5% (132/222) | China | Zheng et al., 2017 |
| Asymptomatic | Sows (in lactation) | Sera | 47.3% (18/38) | Thailand | Kedkovid, Woonwong, Arunorat, Sirisereewan, Sangpratum, Kesdangsakonwut, et al., 2018 |
| Asymptomatic | Sows | Sera | 15.7% (19/121) | Spain | Saporiti, Martorell, et al., 2020 |
| Asymptomatic | Sows and fetuses | Tissues (brain and lung) | 33.7% (86/255) | ||
| Asymptomatic | Different production phases | Tissues and sera | 56.4% (44/78) | Denmark | Franzo, Legnardi, et al., 2018 |
| Asymptomatic | Different production phases | Tissues, sera and nasal swabs | 37.4% (37/99) | Italy | |
| Asymptomatic | Different production phases | Pool of sera | 15.0% (14/94) | Spain | |
| Asymptomatic | Non‐available | Lymph node tissues | NA | Sweden | Ye et al., 2018 |
| Asymptomatic | Growing | Tissues, serum and nasal swabs | 5.9% (5/90) | Poland | Stadejek et al., 2017 |
| Asymptomatic | Nursery/finishing | Sera | 10% (7/73) | Spain | Klaumann, Franzo, et al., 2018 |
| Asymptomatic | Nursery/finishing | Sera | 6.4% (7/110) | Spain | Saporiti, Huerta, et al., 2020 |
| Asymptomatic | Nursery/finishing | Sera | 13.0% (13/100) | Belgium | |
| Asymptomatic | Nursery/finishing | Sera | 10.4% (7/67) | France | |
| Asymptomatic | Nursery/finishing | Sera | 6.3% (5/80) | Germany | |
| Asymptomatic | Nursery/finishing | Sera | 4.5% (3/67) | Italy | |
| Asymptomatic | Nursery/finishing | Sera | 6.3% (5/80) | Denmark | |
| Asymptomatic | Nursery/finishing | Sera | 14.0% (7/50) | The Netherlands | |
| Asymptomatic | Nursery/finishing | Sera | 4.0% (2/50) | Ireland | |
| Asymptomatic | Nursery/finishing | Sera | 15.0% (3/20) | Sweden |