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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Microorganisms and Disease
Prontosil is

not used as an antibacterial agent
an effective antibacterial when used in animals
an effective antibacterial when used in in-vitro cultures
an effective antibacterial both in animals as well as in in-vitro cultures

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

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

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Microorganisms and Disease
What is common in catheters and ventilators?

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

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