Different classes of antibiotics work in different ways
Different types of bacteria respond to antibiotics in different ways
Some bacteria have antibiotic resistance
How do you choose the best antibiotic?
Kirby Bauer Assay
Create a "lawn" of bacteria on agar plate
Add antibiotic disks
Incubate
Measure zone of inhibition
Compare results to table to determine if bacteria is susceptible or resistant (or intermediate) to each antibiotic
Play
Your Turn!
Do the virtual Kirby Bauer Assay
Read the description
Read the procedure
Press "begin" - use the ruler to measure the zone of inhibition around each disk. Determine if the baccteria shows sensitivity, resistance, or an intermediate response to each antibiotic
Answer hte question in Schoology (1.2.2) - labeled Kirby Bauer
Which Antibiotic is the Best Choice?
Corynn McAtee
Created on September 22, 2025
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Transcript
Which Antibiotic is the Best Choice?
MI 1.2.2
Introduction
- Different classes of antibiotics work in different ways
- Different types of bacteria respond to antibiotics in different ways
- Some bacteria have antibiotic resistance
How do you choose the best antibiotic?Kirby Bauer Assay
Play
Your Turn!
Do the virtual Kirby Bauer Assay- Read the description
- Read the procedure
- Press "begin" - use the ruler to measure the zone of inhibition around each disk. Determine if the baccteria shows sensitivity, resistance, or an intermediate response to each antibiotic
- Answer hte question in Schoology (1.2.2) - labeled Kirby Bauer