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QUESTION
Many of this disinfectants tested will produce zones of inhibition around the colonies.
- Many of this disinfectants tested will produce zones of inhibition around the colonies. In some areas, a sample taken from under from under a disk with a definite zone will grow when place in thioglycollate broth, in other cases it will not grow. How would you explain these two different effects?
- On a test plate inoculated with an organism such as a staphylococcus recently isolated from an infection, a few colonies may appear within a clear zone of inhibition. Why would these colonies be present? What would their growth indicate about the probably effectiveness of the antibiotic in controlling infection?
