Louisiana has stopped asking the federal government for its full allotment of COVID-19 vaccine. About three-quarters of Kansas counties have turned down new shipments of the vaccine at least once over the past month. And in Mississippi, officials asked the federal government to ship vials in smaller packages so they don’t go to waste. As the supply of coronavirus vaccine doses in the U.S. outpaces demand, some places around the country are finding there’s such little interest in the shots, they need to turn down shipments.