What should be an ideal distance for setting a BSL-3 and BSL-4 facility from a colony or village to prevent community spread of a contagious disease? Please share the reference if any.
The contagion depends significantly on the pathogen specificities. Van Boeckel et al. presents a spatial perspective on the increasing possibility of an accident towards the growing number of BSL-4 facilities around the world. They modeled the risks for populations living within a daily commuting distance of BSL-4 laboratories. Cf. 'The Nosoi commute: a spatial perspective on the rise of BSL-4 laboratories in cities'. Available at https://arxiv.org/pdf/1312.3283.pdf