Changes

* '''When''' did the animals become affected?

* '''When''' did the animals become affected?

This concept is often described as ''''animal, place, time'''', and it provides a very useful structure to follow in any epidemiological investigation. Epidemiologists also play a key role in bringing together other disciplines when investigating disease, and will often work with economists, virologists, bacteriologists, ecologists, pharmacologists, pathologists, politicians, amongst others, when evaluating appropriate methods of investigating and/or controlling diseases in populations.

This concept is often described as ''''animal, place, time'''', and it provides a very useful structure to follow in any epidemiological investigation. Epidemiologists also play a key role in bringing together other disciplines when investigating disease, and will often work with economists, virologists, bacteriologists, ecologists, pharmacologists, pathologists, politicians, amongst others, when evaluating appropriate methods of investigating and/or controlling diseases in populations.