The 'Virus Hunter' who pinpointed the origin of COVID-19

People love a conspiracy theory, and since very early on in the pandemic there’s been fierce debate about where COVID-19 originated.  Did it come from a live animal market in Wuhan or leak from a research lab in the Chinese city? New research says the lab theory can now be put to bed once and for all. Today, world leading viral evolution expert Edward Holmes on why he was suspicious of the market six years before the disease swept the world.   Featured: Professor Edward Holmes, viral evolution expert, University of Sydney