Coronavirus vaccine within a year is ‘far from a sure thing,’ expert warns

WASHINGTON – A coronavirus vaccine by year’s end is possible, but not something to “bank on,” a leading public health expert warned Sunday as the Trump administration continued to push for swift business reopenings in a bid to revive the battered U.S. economy. Aides to President Donald Trump have touted vaccine prospects, but they’ve also tried to de-couple significant progress toward an …