For those wondering, the term "shoe-leather epidemiology" typically means work in the field undertaken as an immediate response to an outbreak: https://academic

For those wondering, the term "shoe-leather epidemiology" typically means work in the field undertaken as an immediate response to an outbreak: https://academic.oup.com/aje/article/172/6/737/99608 https://academic.oup.com/aje/article/172/6/737/99608