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garri49 [273]
2 years ago
14

When a new viral infection appears in a population, scientists usually try to develop a vaccine against the virus. Which substan

ces would most likely be contained in the new vaccine?
A. live bacteria that ingest viruses
B. white blood cells from an infected individual
C. weakened viruses associated with the infection
D. a variety of microbes that will attack the virus
Biology
1 answer:
sladkih [1.3K]2 years ago
3 0

Answer:

weakened viruses associated with the infection

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