he developed some postulates regarding disease
Koch's postulates are the following:
- The microorganism must be found in abundance in all organisms
suffering from the disease, but should not be found in healthy
organisms.
- The microorganism must be isolated from a diseased organism and
grown in pure culture.
- The cultured microorganism should cause disease when introduced
into a healthy organism.
- The microorganism must be reisolated from the inoculated,
diseased experimental host and identified as being identical to the
original specific causative agent.