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18 April, 19:59

Which of the following organisms would be considered the most virulent, based on their infectious dose (ID50) ?

A. Vibrio cholerae, ID50 = 1,000,000,000B. Mycoplasma tuberculosis, ID50 = 10C. Rickettsia rickettsii, ID50 = 1

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  1. 18 April, 23:44
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    Answer: Rickettsia rickettsii ID50 = 1

    Explanation:

    Virulence is the pathogen's ability to cause infection or harm to the host. ID50 is the Infection Dose or the number of organisms required to cause infection on 50% of normal adult humans. A lower ID50 means that the pathogen has a higher virulence.

    In this particular case, Rickettsia rickettsii would be the most virulent organism
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