covid-19February 22, 2021 FDA wants vaccine makers to react fast to new variants The FDA may allow vaccine makers to ease up on lengthy clinical trials once more is known about how the vaccines work against new variants. 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…