He experienced a severe reaction to Moderna's Covid-19 vaccine candidate. He's still a believer - CNBC 28-May-2020

He experienced a severe reaction to Moderna's Covid-19 vaccine candidate. He's still a believer - CNBC

As the experimental Covid-19 vaccine being developed by Moderna Therapeutics has begun advancing through studies, it has found an advocate: trial volunteer Ian Haydon, a 29-year-old in Seattle, STAT News reports.