Why traditional vaccines failed

The average person gets two to four colds a year. With all the missed school and work, that adds up to an economic impact of about $40 billion, according to some studies. So why haven’t we cured the common cold yet? CNN Medical Correspondent Meg Tirrell explores the science, the history, and the modern attempts to finally crack the case.

Producer: Jesse Remedios

Medical Writer: Andrea Kane

Showrunner: Amanda Sealy

Senior Producer: Dan Bloom

Technical Director: Dan Dzula

Executive Producer: Steve Lickteig

Learn more about your ad choices. Visit podcastchoices.com/adchoices