Microorganisms and Disease
Pseudomembraneous colitis is

caused by a spore-forming bacterium
precipitated by the use of certain antibiotics
caused by a gram-positive bacterium
All of these

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Microorganisms and Disease
Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine?

The possession of a segmented RNA genome
The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings
A limited number of capsule types
The ability of the Rotavirus to be transmitted faster

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Microorganisms and Disease
Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis?

Both organisms are gram-positive spore formers
Both organisms cause skin and respiratory tract infections
Diphtheria toxin and edema toxin are ADP ribosylating toxins
The most serious disease symptoms are the direct result of toxin action

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