Koch's Postulates | Community Health

Koch's postulates are four criteria designed to establish a causal relationship between a microbe and a disease, formulated by Robert Koch and Friedrich Loeffler in 1884. These postulates have been widely used to describe the etiology of various diseases, including cholera and tuberculosis. However, they have been controversially generalized to other diseases and have largely been supplanted by other criteria such as the Bradford Hill criteria and molecular Koch's postulates.