Question

What are examples of non-biological factors in disease transmission?

Answer 1

There are some physical factors, such as - temperature, noise, radiation etc. And chemical - pollution, heavy metals. Social and cultural - drug-addiction, stress and so on

Answer 2

Does anyone know of any factors that can be applied to human and bovine TB?

Answer 3

as tb is not that highly transmissible - a brief encounter wont infect you probably. sitting in the airplane next to a tb patient - thats something else.
therefore - population density, open/closed spaces