As laboratories across the globe scramble to make a COVID-19 vaccine, manufacturers face shortages of common ingredients and supplies. FiveThirtyEight’s senior science writer, Maggie Koerth, explores the unexpected shortages that could delay a vaccine.
Maggie Koerth was a senior reporter for FiveThirtyEight. @maggiekb1
Anna Rothschild was FiveThirtyEight’s senior producer for video. @Anna_Rothschild