Don’t hold your breath for a coronavirus vaccine. Here are the 7 biggest challenges we still need to overcome.
Drugmakers, scientists, and governments are racing to develop a coronavirus vaccine at unprecedented speeds. It seems possible, or even likely, that a vaccine could be available by early 2021. But there are countless obstacles to creating a successful vaccine and ensuring people take it, including public skepticism about a vaccine’s safety and the fair and equitable distribution of shots.