Which portal of entry is the most commonly used by pathogens?

2 ⤊

a. urogenital
b. gastrointestinal
c. respiratory
d. skin
e. they are equally used as portals

2007-11-10 06:31:01 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology

c. respiratory

2007-11-10 06:35:27 · answer #1 · answered by Andi 2 · 1⤊ 0⤋

c. respiratory

2007-11-10 14:40:54 · answer #2 · answered by funmbi 2 · 0⤊ 0⤋

respiratory...

2007-11-10 14:35:27 · answer #3 · answered by ? 4 · 1⤊ 0⤋

2007-11-10 15:31:05 · answer #4 · answered by Loren S 7 · 0⤊ 0⤋