Table 3.

Data from ELISA and PCR assays of domestic pigs samples obtained from 2014 to 2017

Variable	No. positive/total (ELISA)	ELISA (%) [CI 95%]	No. positive/total (PCR)	PCR (%) [CI 95%]
Year
2014	83/24033	0.35 [0.27–0.42]	148/19657	0.75 [0.63–0.87]
2015	0/22826	0	38/15586	0.24 [0.17–0.32]
2016	3/13651	0.02 [0–0.05]	58/6121	0.95 [0.7–1.19]
2017	4/12052	0.03 [0–0.07]	164/5985	2.74 [2.33–3.15]
Season
Winter	0/19045	0	4/9817	0.04 [0–0.8]
Spring	0/16543	0	0/13704	0
Summer	90/15427	0.58 [0.46–0.70]	376/10216	3.68 [3.32–4.05]
Autumn	0/21547	0	28/13612	0.21 [0.13–0.28]
Domestic pigs total	90/72562	0.12 [0.10–0.15]	408/47349	0.86 [0.78–0.95]