Since the Coronavirus emerged, it has mutated into 5 concerning strains, with the most recent variant, Omicron, spreading globally at an alarming rate. And experts say it is not a matter of if but when future infectious disease outbreaks will occur. So, what lessons have we learned from the past few years, and how can countries and international organizations be better prepared for future pandemics? Epidemiologist Jay Varma returns to the show to offer insights.