Why do I need a flu vaccine every year?
Every year flu is different, so every year you need an updated vaccine. Usually, a flu vaccination reduces the risk by 60%. In a bad year, the seasonal flu vaccine reduces the risk of flu illness by only 20% to 30% in the overall population.
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Why do I need a flu vaccine every year? - EN - [PNG-222.63 KB]
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Why do I need a flu vaccine every year? - EN - [PDF-605.98 KB]