I believe it was Anderson Cooper that interviewed a lady doctor in NYC. Her specialty was treating "long haulers", people who have recovered from Covid but with lingering after affects. She did a great job explaining the debilitating lack of energy and exhaustion these people endure. At the end of the interview she admitted that she too was a "long hauler". At the end of the segment Cooper came back and stated that this 40 something Doctor had died! Very serious...very sad!
