A computer rendering of SARS-CoV-2, the virus that causes COVID-19.(Radoslav Zilinsky / Getty Images)

As we enter the fourth year of a world with COVID and the disease continues to spread, scientists are looking at how the virus works and why it's different from diseases we're used to, like influenza.

Dr. David Pate is the former CEO of St. Luke's Health System and has been taking a deep dive into the science of COVID, even as it continues to evolve. He joined Idaho Matters to talk more about this and other public health concerns.