covid-19September 23, 2020 Top adviser steps aside from FDA COVID-19 vaccine reviews over potential conflict Hana El Sahly also oversees a clinical trial for Moderna’s vaccine candidate. 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…