covid-19November 23, 2020 AstraZeneca says its coronavirus vaccine can be around 90 percent effective The vaccine efficacy data will now be submitted to regulators across the world, including in the U.K., Europe and Brazil, for review and approval. 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…