covid-19June 3, 2020 Hydroxychloroquine fails to prevent COVID-19, large study finds The findings come from a highly anticipated clinical trial looking at whether the antimalarial drug touted by President Donald Trump might prevent the illness caused by the coronavirus. 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…