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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

Sagot :

GinnyAnsweridn

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.


Learn more about Infectious agents and chain of infection here:

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