BETHESDA, United States: US President Donald Trump finally yielded to pressure and wore a face mask in public for the first time, as new figures on Sunday showed the pace of the global spread of the coronavirus has accelerated.Since the start of July, nearly 2.5 million new infections have been reported, a record level since the first outbreak of the disease in China last year, according to an AFP tally. And in just a month and a half the number of cases worldwide has doubled, according to the...