The student learning about immunity understands that the chain of infection contains which parts? (Select all that apply. )
A)Portal of entry
B)Susceptible host
C)Virulence factors
D)Reservoir
E)Decreased immunity

Question

Quizplus · Accepted Answer

The chain of infection includes several elements necessary for an infection to spread: a portal of entry for the pathogen to enter a new host (A), a susceptible host who can be infected (B), and a reservoir where the pathogen can live, grow, and multiply (D). Virulence factors (C) are characteristics that enable a pathogen to cause disease but are not considered a part of the chain of infection itself. Decreased immunity (E) might make a host more susceptible but is not a component of the chain of infection; it relates more to the condition of the host.

The Student Learning About Immunity Understands That the Chain of Infection