covid-19August 28, 2020 Doctors find possible case of Covid-19 reinfection in US A 25-year-old Nevada man appears to be the first documented case of Covid-19 reinfection in the United States, researchers say. 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…