What are vaccines against viruses created from?
A)Killed organisms or extracts of antigens
B)Live organisms weakened to produce antigens
C)Purified toxins that have been chemically detoxified
D)Recombinant pathogenic protein

Question

Quizplus · Accepted Answer

Most vaccines against viral infections (e.g., measles, mumps, rubella, varicella [chickenpox], rotavirus) contain live viruses that are weakened (attenuated) to continue expressing the appropriate antigens but are unable to establish more than a limited and easily controlled infection. Vaccines against viruses do not contain extracts of antigens, purified toxins, or recombinant pathogenic proteins.

What Are Vaccines Against Viruses Created From