A) Directly inject weakened pathogen at time of emergency
B) Directly inject preformed antigens
C) Directly inject preformed antibodies
D) Directly inject immunodepressants
Correct Answer: C
Solution :
If a person is infected with some deadly microbes to which quick immune response is required as in tetanus, we need to directly inject the preformed antibodies or antitoxin (a preparation containing antibodies to the toxin). This type of immunization is called passive immunization.
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