Flu and cold season offer excellent examples of physiologic reflexes to ward off illness. One problem is that an effective mechanical defense for one person can complete a link in the chain of infection for someone else. To which link is the above referring?

Flu and cold season offer excellent examples of physiologic reflexes to ward off illness. One problem is that an effective mechanical defense for one person can complete a link in the chain of infection for someone else. To which link is the above referring?




a) Infectious agent
b) Means of transmission
c) Reservoir
d) Portal of entry




Answer: B


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