||This is the standard definition of epidemiology, one with
which we are all familiar. The definition, of course, never changes, regardless of where
you happen to work or carry out your epidemiological study. Specific facets of the job do
change, however, under certain circumstances. For example, when looking at the field known
as military epidemiology, we must pay special attention to the phrase specified
populations which appears in the accompanying definition. In fact, the composition
of the military population and the conditions under which this population lives and works
is what makes this type of epidemiology so special.