Figure 1From: Local spread of classical swine fever upon virus introduction into The Netherlands: Mapping of areas at high risk Estimated high-risk areas for local spatial spread of Classical Swine Fever in The Netherlands. High-risk areas including "border zones" as explained in the Methods section, for an infectious period of 6 weeks (green) and 9 weeks (blue). The border zone radius equals 2.5 km.Back to article page