KOCH’S 4 POSTULATES (1877). “1) infected tissue must show the presence of a particular microorganism not found in healthy animals; 2) the microorganism must be isolated and grown in a pure culture; 3) when injected into a healthy animal, the microorganism must cause the disease associated with it; and 4) this “second generation” microorganism should then be isolated and shown to be identical with the microorganism found in 1).”
http://ocp.hul.harvard.edu/contagion/koch.html
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022