Tracing COVID-19's origin: Did the virus escape from a lab?

There has been a lot of talk lately about the origin of COVID-19, and more and more attention is being given to the theory that the virus could have emerged from a lab leak from a lab in Wuhan, China. So what's the evidence of the lab leak origination theory, and how does it stack up with the other theory of record, that the virus jumped from animals to humans? Dr. Joseph Amon, Director of the Office of Global Health at Drexel University's Dornsife School of Public Health is on the podcast to talk about lab leaks and how often they occur, and what's behind the different theories of how this pandemic started.