Leave your feedback Share Copy URL https://mypepack.gophersport.com/video/?vid=zAVui8Ibhl7 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Flu vaccines - how do they work? shorts [hb9o8wxLGY8] Health Updated on August 09, 2026 EDT — Published on August 09, 2026 EDT Flu vaccines - how do they work? #shorts z7R1TwuVUHp TLbBpvV2fs3 4UZWAd6ZvPW QXl7cPGnnRA vYad6fs488I