As Vaccines Roll Out, Tech Firms Work to Find Alternatives to Needles

Since the 19th century, syringes have been the go-to way to administer vaccines. Over the years, some technologists have tried, without much success, to introduce alternatives. But as Covid-19 vaccines roll out, reporter Jason Douglas says some companies see an opening. Amanda Lewellyn hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices