Disinfectants And The Kirby-Bauer Method

• What are the three mechanisms by which disinfectants work? Describe.
• Which microbes are most susceptible versus most resistant to disinfectants? Why?
• What are the factors that influence the size of the zone of inhibition of an antibiotic when employing the Kirby-Bauer method? How can this method determine if an antimicrobial agent is bactericidal or bacteriostatic?

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