Does anyone remember that during the outbreak of this tragic disease in the early 2000's if you drove or cycled through affected areas (particularly national parks) some roads were closed or you had to pass over disinfectant. Now was wondering what, if anything, happened if a railway passed through an infected area? Were depots required to clean any part of the train with disinfectant? I would imagine this would also apply to containment of other diseases. Just curious.