This week, hosts Mark Masselli and Margaret Flinter speak with Dr. Angela Rasmussen, who leads the core virology team at the Viral Emergence Research Initiative at the Georgetown University Center for Global Health, Science and Security. A renowned expert on emerging pathogens that pose great harm to human health, she helps us unlock some of the mysteries around Sars-CoV-2, the COVID-19 virus. She talks about the swift production of the vaccine as a “scientific achievement of our lifetimes”. And looks at the risk of the growing number of variants of the virus, highlighting need to speed up global distribution of the vaccine to protect the population from greater threats.