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

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

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Microorganisms and Disease
Which of the following is true regarding anthrax?

Anthrax is caused by a virus
Inhalation Anthrax requires infection with a large number of spores
Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis
Anthrax is highly contagious

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Microorganisms and Disease
The "A" subunit of diphtheria toxin

lysis macrophages with the release of cytokines
cause ADP ribosylation of a factor involved in protein synthesis
binds host cell receptors found on heart cells
forms cAMP that leads to fluid accumulation

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