Question
Propose an explanation for why we need a flu shot year after year, instead of only once early in life.
Step 1
This is due to a process called antigenic drift and antigenic shift. Antigenic drift is a mechanism for variation in viruses that involves the accumulation of mutations within the genes that code for antibody-binding sites. Antigenic shift is a sudden change in Show more…
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Search the Internet for information about the flu vaccine. Why is the flu shot administered annually when many other vaccines last for years? Is it possible for the flu vaccine to give a person influenza?
Search the Internet for information about the injectable flu vaccine "flu shot". Why is the flu shot administered annually when many other vaccines last for years? Is it possible for a flu shot to cause influenza?
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