What It Was Like To Participate In The Clinical Trial For Moderna's COVID-19 Vaccine

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An illustration picture shows vials with COVID-19 vaccine stickers attached and syringes with the logo of U.S. biotechnology company Moderna on November 17.

PBS Newshour correspondent John Yang reflects on his experience participating in Moderna's coronavirus vaccine trial. "It started off with self-interest — I wanted to get the vaccine sooner," he says.

(Image credit: Justin Tallis/AFP via Getty Images)