Microorganisms and Disease
Pseudomembraneous colitis is

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

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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 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
Both organisms are gram-positive spore formers

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