Describe how Koch's postulates establish the etiology of many infectious diseases. Explain why Koch's postulates do not apply to all infectious diseases by giving supporting examples.© BrainMass Inc. brainmass.com February 24, 2021, 2:09 pm ad1c9bdddf
Mostly Koch was thinking of bacteria, so his postulates really relate more to how bacteria behave. Most of the exceptions are viruses, because they aren't really "alive" and self-sustaining in the same way that bacteria are.
1. The specific organism should be shown to be present in all cases of animals suffering from a specific disease but should not be found in healthy animals.
This is really the big one when it comes to etiology (i.e. where a disease comes from), because basically you're saying that to get sick with this ...
This solution discusses Koch's postulates and infectious diseases.