11/21/2023 0 Comments 2019 flu shot side effect![]() ![]() Most people recover from the flu in a few days or weeks. Illness in those people who get vaccinated but still get sick. When that happens, though vaccination has been shown in several studies to reduce severity of They work and some people who get vaccinated still get sick. The final explanation for experiencing flu symptoms after vaccination is that flu vaccines vary in how well.More information from the CDC on influenza viruses is available here. There are many different flu viruses that spread and cause Of a flu vaccine to protect a person depends largely on the similarity or “match” between the viruses selected to make the vaccine and those spreading and causing illness. A third reason why some people may experience flu symptoms despite getting vaccinated is that they may have been exposed to a flu virus that is very different from the viruses the vaccine is designed to protect against.May result in a person becoming ill with flu before protection from vaccination takes effect. Another explanation is that it is possible to be exposed to flu viruses, which cause flu, shortly before getting vaccinated or during the two-week period after vaccination that it takes the body to develop immune protection. ![]() The flu vaccine only protects against flu, not other illnesses.
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