Microorganisms and Disease
Prontosil is

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

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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
All of these
phagocytes have trouble moving on the plastic surface

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