covid-19September 14, 2020 The world’s largest vaccine maker, Serum Institute, says it may take until 2024 to get everyone a Covid-19 vaccine if the vaccine requires two doses. CNN’s Athena Jones reports. 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…