covid-19May 22, 2020 Coronavirus vaccine: This week’s update from Moderna, Inovio and more Early progress has been reported on several vaccine efforts, as scientists around the world scramble to test ways to protect people from the coronavirus. Related posts U.K.'s Johnson launches mass testing…Do you need a Covid-19…What's behind workers' hesitation to…Fully vaccinated people can travel…Younger Latino men are Covid's…Salmonella infections in eight states…Salmonella infections in eight states…The U.S. isn't losing to…Virus-killing robot tested for use…In Covid fight, Cuba touts…