Select the Correct Sequence for Proving Koch's Postulates

question 21

Multiple Choice

Select the correct sequence for proving Koch's postulates.
1)  The microorganism must be recovered from the experimentally infected hosts.
2)  The microorganism must be present in every case of the disease.
3)  The same disease must be produced when a pure culture of the microorganism is introduced into susceptible hosts.
4)  The microorganism must be grown in pure culture from diseased hosts.

• A) 2, 4, 3, 1
• B) 1, 2, 3, 4
• C) 1, 3, 2, 4
• D) 4, 3, 1, 2
• E) 4, 1, 2, 3

---

Definitions:

sample Data

Collected portions of data from a population used to infer or estimate characteristics of the entire population.

Covariance

A measure of how much two random variables change together.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; quantifies how much the values of a dataset deviate from the mean.

Interquartile Range

A measure of statistical dispersion, which is the difference between the first and third quartiles in a dataset, showing the spread of the middle 50% of values.