Each year a new flu shot is developed to try to combat the strains of the virus expected to wreak havoc that season. But who decides which viruses make it into the vaccine? What new technologies are being used to produce that vaccine more efficiently? Read the transcript. Check out all the Quick and Dirty Tips shows. Subscribe to the newsletter for regular updates. Join the conversation on Facebook and Twitter. Links: https://www.quickanddirtytips.com/education/science/how-are-seasonal-flu-vaccines-made https://www.quickanddirtytips.com/podcasts https://www.quickanddirtytips.com/subscribe https://www.facebook.com/qdteinstein https://twitter.com/qdteinstein