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Which of these is the best evidence that the influenza virus continues to evolve? A) The flu can spread worldwide in a season. B) The flu has multiple symptoms, impacting respiratory, digestive, and muscular
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Which of these is the best evidence that the influenza virus continues to evolve?

A)
The flu can spread worldwide in a season.
B)
The flu has multiple symptoms, impacting respiratory, digestive, and
muscular systems in humans.
Flu vaccines must be administered annually to reduce the likelihood of flu
infection during flu season.
D)
The flu continues to have high rates of mortality in the most elder and
youngest subset of the human population.

User Dwelch
by
5.3k points

1 Answer

2 votes

Answer:

I think A but im not sure

Step-by-step explanation:

User Simon Baars
by
5.8k points
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