RT Journal Article
T1 Presence of Porcine Circovirus Type 2 in the Environment of Farm Facilities without Pigs in Long Term-Vaccinated Farrow-to-Wean Farms
A1 López-Lorenzo, Gonzalo
A1 Prieto Lago, Alberto
A1 López Novo, Cynthia
A1 Díaz Fernández, Pablo
A1 Remesar Alonso, Susana
A1 Morrondo Pelayo, María Patrocinio
A1 Fernández, Gonzalo
A1 Díaz Cao, José Manuel
K1 Biosecurity
K1 Environmental sampling
K1 Porcine circovirus type 2 (PCV2)
K1 Real-time PCR
K1 Swine
AB Vaccination against Porcine Circovirus Type 2 (PCV2) even over several years has proven as an insufficient measure to eradicate the infection from farms, possibly due to not producing sterilizing immunity. Viral persistence in the farm environment has been proposed as a possible cause of reinfection, and for that reason, the main objective of this study was to identify potential critical points where PCV2 could persist in farrow-to-wean farms which had been vaccinating piglets for years. Surface samples were collected from different farm facilities with and without animals and analyzed by qPCR to detect and quantify the viral load. Most of the samples taken in animal housing facilities tested negative (96.6%); however, PCV2 was more frequently detected in samples from the offices (37.5%), the farm staff (25%) and the perimeter (21%). These results indicate that PCV2 contamination is frequent in facilities despite the long-term use of vaccination programs. Therefore, PCV2 control programs should include more exhaustive cleaning and disinfection protocols in non-animal facilities, as well as the implementation of specific biosecurity measures in these areas to minimize the risk of PCV2 introduction from external sources
PB MDPI
YR 2022
FD 2022
LK http://hdl.handle.net/10347/32180
UL http://hdl.handle.net/10347/32180
LA eng
NO López-Lorenzo, G.; Prieto, A.; López-Novo, C.; Díaz, P.; Remesar, S.; Morrondo, P.; Fernández, G.; Díaz-Cao, J.M. Presence of Porcine Circovirus Type 2 in the Environment of Farm Facilities without Pigs in Long Term-Vaccinated Farrow-to-Wean Farms. Animals 2022, 12, 3515. https://doi.org/10.3390/ani12243515
NO This research has been funded by the European PCV2-Award sponsored by Boehringer Ingelheim Animal Health, Germany. We would like to thank COREN and the farmers for their disposition to develop the present study and Martín Rodríguez Villar for his collaboration in the samplings and his technical assistance.
DS Minerva
RD 24 abr 2026