Why Do We Need Yearly Flu Shots, but Not Measles Shots?

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Go to https://NordVPN.com/scishow and use code SCISHOW to get 75% off a 3 year plan. Protect yourself online today! Unlike measles, Influenza requires a fresh shot of vaccines every year. But why? Hosted by: Olivia Gordon SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at https://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Bill & Katie Scholl, Adam Brainard, Greg, Alex Hackman, Andrew Finley Brenan, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4007870/ https://www.cdc.gov/measles/about/history.html https://www.cdc.gov/measles/downloads/measlesdataandstatsslideset.pdf https://www.pnas.org/content/109/37/14989 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5035964/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4848605/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4848602/ https://www.cell.com/cell-reports/fulltext/S2211-1247(15)00471-4 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1193617/ https://www.who.int/biologicals/vaccines/measles/en/ https://www.cdc.gov/flu/about/qa/vaccineeffect.htm https://www.ncbi.nlm.nih.gov/pubmed/19086915 https://www.who.int/biologicals/vaccines/influenza/en/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2937864/ https://www.cdc.gov/flu/pandemic-resources/basics/past-pandemics.html https://www.cdc.gov/flu/other/animal-flu.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3804342/ https://www.tandfonline.com/doi/full/10.1586/erv.12.73 https://www.nature.com/articles/s41598-018-28706-1 https://www.ncbi.nlm.nih.gov/pubmed/22308500 http://jem.rupress.org/content/208/1/181.abstract https://jvi.asm.org/content/90/14/6549 https://jvi.asm.org/content/90/2/851 https://www.nature.com/articles/nbt.4328 https://clinicaltrials.gov/ct2/show/NCT03450915 https://www.cdc.gov/flu/professionals/vaccination/effectiveness-studies.htm https://www.cdc.gov/flu/avianflu/virus-transmission.htm https://www.ncbi.nlm.nih.gov/pubmed/22318394 Image Sources: https://www.istockphoto.com/photo/medical-vaccine-gm926989260-254321251 https://www.istockphoto.com/photo/blue-viruses-viral-disease-cells-abstract-3d-illustration-gm905497568-249675011 https://en.wikipedia.org/wiki/Hemagglutinin_(influenza)#/media/File:Flu_und_legende_color_c.jpg https://commons.wikimedia.org/wiki/File:CDC-11214-swine-flu.jpg https://en.wikipedia.org/wiki/Neuraminidase#/media/File:Neuraminidase_Ribbon_Diagram.jpg https://en.wikipedia.org/wiki/Hemagglutinin_(influenza)#/media/File:PDB_1hgd_EBI.jpg https://phil.cdc.gov/Details.aspx?pid=21074 https://www.istockphoto.com/vector/data-protection-gm1007097308-271758293 https://www.istockphoto.com/photo/white-llama-in-argentina-south-america-salta-province-gm154948449-15846820
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