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

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

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Microorganisms and Disease
What is common in catheters and ventilators?

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

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