Microorganisms and Disease
Mucus helps in protecting against pathogens by

sequestering Iron
facilitating the growth of normal flora
lowering the pH
blocking access and attachment of pathogens to mucosal surfaces

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Microorganisms and Disease
Prontosil is

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

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Microorganisms and Disease
A major difference between EHEC and EPEC is

EPEC rearranges host cell actin and EHEC does not
EPEC passes through the placenta to infect the fetus and EHEC does not
EHEC possesses a type III secretion system and EPEC does not
EHEC secretes a Shiga-like toxin and EPEC does not

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