Question

s. aureus has been isolated from george’s infected wound. to satisfy koch’s postulates, what would george’s doctor need to do with the isolated s. aureus? view available hint(s) inject the s. aureus into an animal, observe whether the animal gets an infection similar to george’s, and isolate the same strain of s. aureus from the infection. compare the dna sequence of the strain of s. aureus isolated from george to other s. aureus strains to see whether it has been isolated from other similar infections. inject the s. aureus into an animal; if the animal develops the same infection, isolate the infectious material from the animal and test its ability to vaccinate another animal. inject the s. aureus strain into an animal and see whether it develops the same type of infection that george has.

Explanation:

Koch's postulates require: 1) The microbe is found in all diseased individuals. 2) The microbe is isolated and grown in pure culture. 3) The isolated microbe, when inoculated into a healthy susceptible host, causes the same disease. 4) The microbe is re - isolated from the experimentally infected host. The option "Inject the S. aureus strain into an animal and see whether it develops the same type of infection that George has" follows this postulate. The first option only injects and observes but doesn't re - isolate. The second option is about comparing DNA sequences which is not part of Koch's postulates. The third option is about vaccination which is not related to Koch's postulates.

Answer:

Inject the S. aureus strain into an animal and see whether it develops the same type of infection that George has.