Consider Two Isolates, a and B

question 29

Multiple Choice

Consider two isolates, A and B. Microbe A had an LD₅₀ of 5 * 10⁴, while microbe B recorded an LD₅₀ of 5 *10⁷. Which isolate is more virulent?

• A) unable to know based on information provided
• B) microbe A
• C) microbe B
• D) They are equally virulent.
• E) The values indicate that neither one is virulent.

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