Guests: Dr. Grace Parraga, Tier 1 Canada research chair in lung imaging at Western University's Schulich School of Medicine & Dentistry, and Dr. Michael Nicholson, a respirologist with the post-acute COVID-19 program at St. Joseph's Hospital in London, Ont.

An estimated one in ten COVID survivors suffer from long COVID. The cause of the condition has puzzled doctors and long COVID sufferers are frustrated by the lack of knowledge and support. With an estimated 200 symptoms associated with long COVID, it's hard to diagnose and treat. Now, an Ontario research team has made a discovery that could be key in helping to diagnose it and potentially find treatments.

This episode was produced by Alexis Green, Matthew Hearn and Raju Mudhar.