Microorganisms and Disease
The nature of the poliovirus gives for oral vaccination (satin vaccine) as part of the eradication programme is

small dosage of wild-type live viruses
heat killed virus
formalin-inactivated viruses
live attenuated strains of all three immunological types

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

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

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Microorganisms and Disease
Prontosil is

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

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