For instance , the epidemiology of diabetes shows that it is not spread by infection ; except in a very unusual sense , in the case of Type 1 diabetes .
Epidemiological studies can often provide a considerable insight into the nature of disease .
The epidemiology of diabetes shows that it is not spread by infection ; except in a very unusual sense , in the case of Type 1 diabetes .
Epidemiological studies can often provide a considerable insight into the nature of disease .