Leave your feedback Share Copy URL https://mypepack.gophersport.com/video/?vid=zZSdhG6cZ1A Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Flu vaccines - how do they work? shorts [hU516dgdKOn] Health Updated on August 09, 2026 EDT — Published on August 09, 2026 EDT Flu vaccines - how do they work? #shorts YT8PXyH9tB9 SiYdP3S44Ok o2U5DKvCZVn VOPJ7db2YDb C0vtIv1A9zy