Answered

Which of the following is the first link in the chain of infection?

A. Infectious agent
B. Portal of entry
C. Immunity
D. Occupational exposure



Answer :

GinnyAnswer

Final answer:

Portal of entry is the first link in the chain of infection.


Explanation:

Portal of entry is the first link in the chain of infection. It is the site through which pathogens enter host tissue. Major portals of entry include the skin, mucous membranes, and parenteral routes.


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