Which of the Following is Not a Factor That Weakens

Question

Which of the following is not a factor that weakens host defenses against infections?
A) Genetic defects in immunity
B) Physical and mental stress
C) Strong, healthy body
D) Chemotherapy
E) Old age

Accepted Answer

A strong, healthy body enhances host defenses against infections, making it less likely for infections to take hold or cause significant harm, unlike the other options which can weaken the body's defenses.