Question

hey❤



⏩How do scientists know how to ..make a flu vaccine if viruses can be different every year ..❓

➡If you know then give answer ,otherwise don't give ...❗❗​

Answer 1

Answer:

Bro the viruses does differs but not too much

And they already predict which form the diseases are going to take its that simplee

They make medicines in the intervals of time lik 1 2 3 years

Mark as brainliest

Answer 2

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⏩How do scientists know how to ..make a flu vaccine if viruses can be different every year ..❓

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The flu virus changes every year. However, scientists gather information about virus mutations, or changes, before the flu-virus season begins.

This lets them predict what each year’s flu virus might look like. Based on that, a vaccine is made that we hope will be accurate enough to help people fight off major cases of the flu..

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