Rich nations have locked up 60-percent of the global supply of coronavirus vaccines. In many cases, countries are buying more than they need. Canada, for instance, has ordered enough jabs to cover its population five times over. This hoarding has deprived some of the world's most vulnerable people of the life-saving injections. But as well as hurting poorer populations, the World Health Organization is warning this so-called 'vaccine nationalism' could also cost wealthy nations trillions of dollars. Paolo Montecillo reports. For more, we spoke to Doctor Andrea Feigl in Washington. She's a health economist and the founder and CEO of the Health Finance Institute. #Coronavirus #WHO #VaccineHoarding