Flu Shot
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explains that flu shots, or influenza vaccines, are developed each season to target specific strains of the flu virus. Flu shots are possible because there are limited types of flu viruses each year, allowing vaccines to be tailor-made. The efficacy of a flu shot ranges from 40% to 60% in preventing the particular strain that is most abundant in a given season. However, the flu shot does not protect against other strains of the flu or other respiratory infections. Huberman also notes that while flu shots can reduce the severity of symptoms if you contract the flu, they are not effective against other forms of flu viruses or colds. Based on personal preference and exposure risk, individuals may choose whether to get vaccinated, especially considering their environment and potential exposure 1 2.
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