Sia
Question
Biology
Posted 8 months ago
Which one of the following bacteria has the lowest infective dose (ID50)?
a. Shigella species.
b. Vibrio cholerae
c. Salmonella typhi
d. Campylobacter jejuni
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Answer from Sia
Posted 8 months ago
A
Key Concept
Infective Dose (ID50)
Explanation
The infective dose (ID50) is the number of organisms required to cause infection in 50% of a host population. Shigella species have the lowest ID50, meaning they require fewer organisms to cause infection compared to the other bacteria listed.
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