A neonate exhibited some preliminary signs of infection, but the infant's condition resolved spontaneously prior to discharge home from the hospital. This infant's recovery was most likely due to what type of immunity?
A) Cytokine immunity
B) Specific immunity
C) Active acquired immunity
D) Nonspecific immunity
Ans: D
Feedback:
Natural immunity, or nonspecific immunity, is present at birth. Active acquired or specific immunity develops after birth. Cytokines are proteins that mediate the immune response; they are not a type of immunity.
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