Skip to main content

Influenza: Why is the flu vaccine recommended every year?

Posted by on Wednesday, September 7, 2022 in .

Flu vaccines are recommended yearly because flu viruses are constantly changing and therefore, the composition of flu vaccines is reviewed annually and updated to protect against the viruses that research indicates will be most common.  In addition, a person’s immune protection from vaccination declines over time, so an annual flu vaccine is needed for optimal protection. More information can be found here.