The following table includes information from a procedure where mice were injected with different concentration amounts of a certain microbe (Mircobe A) under these distinct circumstances: no other treatment added (NT), after being exposed to anti-microbe A vaccine (vacA), and during treatment with a broad-spectrum antibiotic (x). CFU/ml Injected % Infected - NT % Infected - vacA % Infected - x 1 2 0 1 10 20 0 22 100 52 3 44 1000 100 14 97

Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN:9781133893943
Author:ESTRIDGE
Publisher:ESTRIDGE
Chapter7: Basic Clinical Microbiology
Section7.7: Bacterial Identification And Antibiotic Susceptibility Testing
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The following table includes information from a procedure where mice were injected with different concentration amounts of a certain microbe (Mircobe A) under these distinct circumstances: no other treatment added (NT), after being exposed to anti-microbe A vaccine (vacA), and during treatment with a broad-spectrum antibiotic (x).

CFU/ml Injected % Infected - NT % Infected - vacA % Infected - x
1 2 0 1
10 20 0 22
100 52 3 44
1000 100 14 97

1. What is the ID50 value of Microbe A (in CFU/ml)?

2. Is Microbe A antibiotic-sensitive?

3. Is the vacA vaccine effective to stop the infection?

 

 

 

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