RT Journal Article
T1 Environmental distribution of Porcine Circovirus Type 2 (PCV2) in swine herds with natural infection
A1 López-Lorenzo, Gonzalo
A1 Díaz Cao, José Manuel
A1 Prieto Lago, Alberto
A1 López Novo, Cynthia
A1 López Sández, Ceferino Manuel
A1 Díaz Fernández, Pablo
A1 Rodríguez Vega, Víctor
A1 Díez Baños, Pablo
A1 Fernández Rodríguez, Gonzalo
AB Porcine circovirus type 2 (PCV2) is the aetiological agent of PCV2-Systemic Disease (PCV2-SD) and PCV2-Subclinical Infection (PCV2-SI). PCV2 is highly resistant to environmental conditions, being able to remain in the farm environment and thus represent a risk for infection maintenance. The aim of this study was to identify, under field conditions, the possible critical points in the environment of non-vaccinated farrow-to-weaning swine farms where PCV2 could accumulate and persist. For that, environmental samples from five swine farms with PCV2-SD or PCV2-SI were taken and analysed by qPCR, including different farm areas, farm personnel and management implements. PCV2 DNA was detected in the environment of all farms (42.9% of positive samples). Overall, the PCV2-SD herd seemed to present more positive samples and higher viral loads than the PCV2-SI herds. At individual farm level, weaning areas appeared to be the most contaminated facilities. In addition, PCV2 was found at high levels in most samples from farm workers, especially work boots, suggesting that they may play a role in within-farm transmission. In addition, PCV2 was detected in areas without animals the like warehouses, offices and farm perimeter. Therefore, this study is helpful to improve measures to reduce within-farm PCV2 dissemination.
PB Nature Publishing Group
YR 2019
FD 2019
LK http://hdl.handle.net/10347/21224
UL http://hdl.handle.net/10347/21224
LA eng
NO López-Lorenzo, G., Díaz-Cao, J.M., Prieto, A. et al. Environmental distribution of Porcine Circovirus Type 2 (PCV2) in swine herds with natural infection. Sci Rep 9, 14816 (2019). https://doi.org/10.1038/s41598-019-51473-6
NO This work has been funded by the European PCV2-Award 2016 sponsored by Boehringer Ingelheim Animal Health, Germany
DS Minerva
RD 25 abr 2026