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Table 6 Yearly risk of introduction of pig diseases

From: Risk assessment as a tool for improving external biosecurity at farm level

Scenario/Model Biosecurity measures Farrow-to-finish herd 484 sows Specialised fattening herd 1600 pigs
SD   % %
 Baseline No 11.43 (2.88–31.30) 45.35 (5.66–70.00)
Yes 2.33 (0.20–4.92) 22.18 (2.69–35.75)
 Low-risk No 8.17 (1.88–25.58) 26.32 (2.98–45.35)
Yes 1.18 % (0.10–2.52) 12.50 (1.37–22.03)
M. hyo
 Baseline No 100 (98.37–100) 100 (100–100)
  Yes 53.51 (17.20–85.03) 55.86 (18.34–87.56)
 Low-risk No 99.99 (98.30–100) 100 (99.99–100)
Yes 54.24 (17.01–86.46) 38.12 (15.09–67.61)
  1. Model outputs for swine dysentery (SD) and Mycoplasma hyopneumoniae (M. hyo) in two example pig herds, as calculated in a stochastic model, based on two scenarios (baseline and low-risk contact patterns, respectively), with and without mitigating biosecurity (quarantine for new animals, protective clothes for visitors, hygiene lock for loading/unloading, isolated deadstock collection area). Median result and 5th to 95th percentiles (in brackets) are given