coronavirus vaccines shipped within the United States have so far gone unused, U.S. health officials said on Monday, as the governors of New York and Florida vowed to penalize hospitals that fail to dispense shots quickly enough.In New York, hospitals must administer vaccines within a week of receiving them or face a fine and a reduction in future supplies, Governor Andrew Cuomo said, hours before announcing the state’s first known case of a new, more infectious coronavirus variant originally detected in Britain.“I don’t want the vaccine in a fridge or a freezer, I want it in somebody’s arm,” the governor said.