US can "print" world reserve currency at will and borrow from itself without restriction. It isn't surprising that vaccines are so readily available in the US,

US can "print" world reserve currency at will and borrow from itself without restriction. It isn't surprising that vaccines are so readily available in the US, at the cost of few 10s of billion, that US can just will into existence at any time, they save their entire economy 100s of billions in lost sales. This is why vaccines are free but healthcare is not - healthcare in the US generates 100s of billions per year and keeps people in workforce on both sides - as employees of insurance companies and as employees of other companies that otherwise couldn't afford insurance. Other countries have to actually earn their money to pay for things.