Question:

the most frequently used portal of entry for pathogens is?

by Guest9735  |  12 years, 7 month(s) ago

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a) mucous membranes of the respiratory tract
b)mucous membranes of the gastrointestinal tract
c)skin
d)parental  route
e)all are used equally

 Tags: entry, frequently, pathogens, Portal

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  1. Guest2845

    i think it is A.

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