Leave your feedback Share Copy URL https://gographicsoutput.com/video/L66IVNH8Fck.html Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Flu vaccines - how do they work? shorts [uBg9yu5IrOY] Health Updated on August 08, 2026 EDT — Published on August 08, 2026 EDT Flu vaccines - how do they work? #shorts OGumk5bTaEF Y6buQY12iyX msGf1uir76n 3w85DZjbSOJ