Bird flu isn’t new, you may even remember past outbreaks. But showing up in milk? Is America ready if it leaps to spreading among humans?Guest: Katelyn Jetelina, epidemiologist, senior advisor to the CDC Want more What Next TBD? Subscribe to Slate Plus to access ad-free listening to the whole What Next family and all your favorite Slate podcasts. Subscribe today on Apple Podcasts by clicking “Try Free” at the top of our show page. Sign up now at slate.com/whatnextplus to get access wherever you listen. Learn more about your ad choices. Visit megaphone.fm/adchoices