Biosecurity practices undertaken by companies and contractors as reported by interviewed farmers (n = 56) from a 100 km2 region of north-west England in 2005.

1Denotes number of farms where organisations park in animal areas/Total number of farms visited by that organization.2Denotes frequency of response/Number of farms where organisations park in animal areas.3Denotes number of farms where organisation personnel enter animal areas/Total number of farms visited by that organization.4Denotes frequency of response/Number of farms where organisation personnel enter animal areas.*Denotes missing data from one farm.