Propose an explanation for why we need a flu shot year after year...

Question

Propose an explanation for why we need a flu shot year after year, instead of only once early in life.

Accepted Answer

Hey everyone. Let's take a look at this question together. The flu vaccine is reformulated every year because of why. So we know that when we're talking about the flu we're talking about influenza. And we know that when we're dealing with influenza, we know that it actually mutates rapidly and due to this rapid mutation of the virus it actually would spread and cause a wide variety of different strains. So because of that rapid mutation, we want to control it and so we want to control the mutations as well as controlling the spread of the virus, prevent it from mutating into multiple varieties of that influenza. And so that means that answer choice B. Is the correct answer. Because the reason why the flu vaccine is reformulated every year is because the virus mutates every year and we want to control those mutations and the spread by reformulating that vaccine every year. So answer choice B. Is the correct answer. Now, answer choice A while a true statement is not the correct answer because while the virus is extremely lethal, it is not the main reason why the vaccine is reformulated. So answer choice A. Is incorrect answer choice C. Also a true statement is not the correct answer because yes the virus is highly contagious, but it's those mutations and the spread of the virus being the reason why we reformulated every year. And then answer choice D. Is also incorrect because that cost of manufacturing the vaccine doesn't really have anything to do with the reason why we reformulated every year. So answer choice B is the main reason why the flu vaccine is reformulated every year because of the virus mutating every year. I hope you found this video to be helpful. Thank you and goodbye.

Propose an explanation for why we need a flu shot year after year, instead of only once early in life.

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