Microorganisms and Disease
Pseudomembraneous colitis is

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

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Microorganisms and Disease
What is common in catheters and ventilators?

They bypass important defenses of the body
Bacteria responsible for associated infections are usually susceptible to antibiotics
They predispose patients to viral rather than bacterial infections
They are used primarily in neonatal intensive care units

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Microorganisms and Disease
Plastic implants can pose a serious nosocomial infection problem because

infected implants usually have to be surgically removed
phagocytes have trouble moving on the plastic surface
phagocytes have trouble engulfing bacteria embedded in a biofilm
All of these

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