covid-19March 12, 2021 AstraZeneca to seek U.S. authorization for Covid vaccine this month or early next The drugmaker now has data on at least 150 cases of Covid-19 in its U.S. trial. 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…