covid-19July 20, 2020 Adrian Hill, the lead researcher in Oxford University’s vaccine test on humans, shares encouraging results from their testing, and says they are still hoping to have a Covid-19 vaccine by the end of the year. 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…