Question

2. A vaccine that contains microbes that have been treated with chemicals, radiation, heat, or some other method that does not destroy the organism but doesn’t let it replicate is called
       Inactivated
       Attenuated
       Toxoid
       Conjugate

4.When no zone is seen around an antibiotic disc being used for identification purposes, this generally means that the microbe is _____________ to the antibiotic.
       Resistant
       Pathogenic
       Sensitive
       Neutral
7. Any clear zone of inhibition around an antibiotic disc being used for identification is a clear indication that the organism is sensitive to the antibiotic.

True

False

9. The _________ test involves using rabbit plasma as a reagent and its results are determined by observation of thickening of the medium.
       Catalase
       Oxidase
       Coagulase
       Peroxidase

13. Characteristics of an ideal antimicrobial drug include all EXCEPT
       Toxic to the specific microbe but nontoxic to the host
       Readily delivered to the site of infection
       Does not lead to the development of antimicrobial resistance
       Easy to administer but able to reach the infectious agent anywhere in the body
       All of the answers are correct

Answer 1

2. It is attenuated. In attenuated vaccine the pathogen is not destroyed, instead of that the virulance is reduced and its replication is brought down. In toxoids modified toxin is used. In inactivated vaccine killed pathogen is used.

4. Resistant. The zone that from around disc is called inhibition zone. It's the place where microorganism doesn't grow. If no zone is there means the antibiotic is not good for preventing the growth of microorganism and the microorganism is resistant to antibiotic.

7. True. If zone of inhibition is there it shows that the microrganism cannot grow there. This means that microorganism is sensitive.

9. It's coagulase test.

13. All of the answers are correct. Antimicrobial drug is to kill the pathogen. They should be non toxic to host and they should be free of antimicrobial resistance.