Robert Koch's Postulates About Tuberculosis🔬🔖

Postulate:

1. The microorganism must be
present in every case of the
disease but absent from
healthy organisms.

Experimentation:

Koch developed a staining technique to examine human tissue. Mycobacterium tuberculosis could be identified in
diseased tissue.

Postulate:

2. The suspected microorganisms
must be isolated and grown in a
pure culture.

Experimentation:

Koch grew M. tuberculosis in pure
culture on coagulated blood serum.

Postulate:

3. The same disease must result
when the isolated microorganism
is inoculated into a healthy host.

Experimentation:

Koch injected cells from the pure
culture of M. tuberculosis into guinea
pigs. The guinea pigs subsequently
died of tuberculosis.

Postulate:

4. The same microorganisms must
be isolated again from the
diseased host.

Experimentation:

Koch isolated M. tuberculosis in pure culture on coagulated blood serum from the dead guinea pigs.

Source: Prescott’s Microbiology📄🔖
If you liked our post, Follow Microbiology Trendz For More Microbiology Updates!

#Robertkoch #kochexperiments #robertkochpostulates #tuberculosis #mycobacteriumtuberculosis