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Table 2 Herd prevalence by farm type [small (< 100), medium (< 500) and large (≥ 500)] in vaccine and unvaccinated farms

From: Seroprevalences of multi-pathogen and description of farm movement in pigs in two provinces in Vietnam

Tested pathogen

No. of vaccinated farm type

Seroprevalence of vaccinated farms with 95% CI

No. of unvaccinated farm type

Seroprevalence of unvaccinated farms with 95% CI

PCV2

Small (6)

50.0 (11.81–88.19)

Small (83)

57.83 (46.49–68.60)

Medium (6)

100.0 (54.07–100.0)

Medium (20)

80.0 (56.34–94.27)

Large (2)

100.0 (15.81–100.0)

Large (3)

33.33 (0.84–90.57)

PRRS

Small (12)

41.67 (15.17–72.33)

Small (77)

9.09 (3.73–17.84)

Medium (13)

69.23 (38.57–90.91)

Medium (13)

61.54 (31.58–86.14)

Large (2)

50.0 (1.26–98.74)

Large (3)

33.33 (0.84–90.57)

M. hyo

Small (14)

78.57 (49.20–95.34)

Small (75)

64.0 (52.09–74.77)

Medium (9)

100.0 (66.37–100.0)

Medium (17)

100.0 (80.49–100)

Large (2)

100.0 (15.81–100.0)

Large (3)

33.33 (0.84–90.57)

JE

Small (0)

0

Small (89)

87.64 (78.96–93.67)

Medium (0)

0

Medium (26)

100.0 (86.77–100)

Large (0)

0

Large (5)

100.0 (47.81–100)

 

Small (0)

0

Small (88)

54.55 (43.58–65.20)

Leptospirosisa

Medium (0)

0

Medium (25)

64 (42.52–82.03)

 

Large (0)

0

Large (5)

80.0 (28.36–99.49)

  1. asera samples from two farms were not enough volumes for the MAT