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Table 2 Prevalence of pathogenic Yersinia detected with rt-PCR in wild boars according to the variables studied

From: Prevalence of Yersinia enterocolitica and Yersinia pseudotuberculosis in wild boars in the Basque Country, northern Spain

Variables N YE and YP (%) YE (%) YP (%)
Age
 Young 25 18 (72) 12 (48) 9 (36)
 Adult 20 10 (50) 8 (40) 3 (15)
Sex
 Females 30 19 (63.3) 12 (40) 11 (36.7)
 Males 19 12 (63.2) 9 (47.4) 4 (21.1)
Sampling year
 2010 23 18 (78.3) 13 (56.5) 9 (39.1)
 2011 32 7 (21.9) 7 (21.9) 0
 2012 17 12 (70.6) 4 (23.5) 9 (52.9)
Season
 Winter 8 5 (62.5) 5 (62.5) 1 (12.5)
 Spring 9 7 (77.8) 2 (22.2) 6 (66.7)
 Summer 10 5 (50) 3 (30) 2 (20)
 Autumn 45 20 (44.4) 14 (31.1) 9 (20)
Natural regions
 1 58 26 (44.8) 15 (25.9) 15 (25.9)
 2 6 5 (83.3) 5 (83.3) 0
Slope
 Atlantic 72 37 (51.4) 24 (33.3) 18 (25)
Porcine censusa
 Low 26 12 (46.1) 6 (23.1) 8 (30.8)
 Middle 24 11 (45.8) 6 (25) 6 (25)
 High 22 14 (63.6) 12 (54.6) 4 (18.2)
Caprine censusb
 Low 3 0 0 0
 Middle 35 19 (54.3) 10 (28.6) 12 (34.3)
 High 34 18 (52.9) 14 (41.2) 6 (17.7)
Ovine censusc
 Low 20 7 (35) 3 (15) 4 (20)
 Middle 28 12 (42.9) 6 (21.4) 8 (28.6)
 High 24 18 (75) 15 (62.5) 6 (25)
Bovine censusd
 Low 26 13 (50) 6 (23.1) 9 (34.6)
 Middle 17 7 (41.2) 4 (23.5) 3 (17.7)
 High 29 17 (58.6) 14 (48.3) 6 (20.7)
  1. N number of samples analyzed, YE and YP number and percentage of Y. enterocolitica and Y. pseudotuberculosis positive samples, YE number and percentage of Y. enterocolitica positive samples, YP number and percentage of Y. pseudotuberculosis positive samples
  2. aPorcine census: low (10–140), middle (167–426), high (580–7332)
  3. bCaprine census: low (66–655), middle (909–1056), high (1136–2810)
  4. cOvine census: low (1881–6698), middle (8035–15,033), high (15,417–32,802)
  5. dBovine census: low (276–4277), middle (4602–6768), high (6781–19,109)