Why Is Polio Back?

Polio was nearly eradicated. But immunity gaps allow the virus to resurface. The fight isn’t over, and one case can spark an outbreak. #kurzgesagt #inanutshell #kurzgesagt_inanutshell #learnwithshorts #science #polioawareness #polioeradication #poliofree Sources & further reading: https://sites.google.com/view/kgs-tiktok-sources Follow us for more sciencey content! 🦆 OUR CHANNELS ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ German: https://kgs.link/youtubeDE Spanish: https://kgs.link/youtubeES French: https://kgs.link/youtubeFR Portuguese: https://kgs.link/youtubePT Arabic: …