About this episode
As COVID-19 spreads across the globe, the World Health Organization has declared the novel coronavirus a pandemic. We’re answering questions about the virus with infectious disease doctor Krutika Kuppalli, who studies global pandemics. And chemistry professor Palli Thordarson, from the University of New South Wales on the science of why washing your hands with plain old soap and water is so effective against germs. Download our learning guides: PDF | Google Slide | Transcript