asked 61.4k views
4 votes
A preparation that "teaches" the immune system to recognize a disease-causing agent without actually causing disease is termed a(n):__________.

A. antibiotic.
B. virus.
C. antiviral.
D. vaccination.
E. injection.

1 Answer

4 votes
D vaccine. Have a good day
answered
User Shantanu Paul
by
8.4k points
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