When an attenuated toxin is administered to a client, the B lymphocytes create memory cells that recognize the antigen if it invades the body at a future time. What kind of immunity is this?
A) Artificially acquired active immunity
B) Passive immunity
C) Natural immunity
D) Naturally acquired active immunity
A
Feedback:
Artificially acquired active immunity results from the administration of a killed or weakened microorganism or toxoid (attenuated toxin). The memory cells manufactured by the B lymphocytes "remember" the killed or weakened antigen and recognize it if a future invasion occurs. Passive immunity develops when ready-made antibodies are given to a susceptible person. Natural immunity is not one of the types of immunity. Naturally acquired active immunity occurs as a direct result of infection by a specific microorganism.
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