Microorganisms and Disease
Mucus helps in protecting against pathogens by

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

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

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