covid-19February 23, 2021 Some states aren't listening to Biden's plea to vaccinate teachers — and they don't have to The federal government’s power goes only so far, especially when it comes to public health. 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…