The First Step for Directly Linking a Microbe to a Specific

Multiple Choice

The first step for directly linking a microbe to a specific disease according to Koch's postulates is to

A) inject a sample of blood or other body fluid from a diseased animal into a healthy animal.
B) isolate microbes from the blood of healthy animals.
C) culture the blood or other body fluid from a diseased animal using nutrient medium.
D) obtain a sample of blood or other body fluid from a diseased animal.
E) compare the blood of a sick animal to blood obtained from a healthy animal.