covid-19August 18, 2020 First Covid-19 vaccine trial moving at a good clip, but officials still “very concerned” The first coronavirus vaccine trial in the US is moving along at a good clip, but needs more minorities to enroll if it is to succeed, officials tell CNN. 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…