covid-19February 24, 2021 J&J vaccine deemed safe and effective in documents released by FDA The shot has a “favorable safety profile” and is shown to be effective against severe Covid-19. 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…