Microorganisms and Disease
Pseudomembraneous colitis is

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

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

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

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