Our window of opportunity is closing. If we fail to develop a national coordinated response, based in science, I fear the pandemic will get far worse and be prolonged, causing unprecedented illness and fatalities. While it is terrifying to acknowledge the extent of the challenge that we currently confront, the undeniable fact is there will be a resurgence of the COVID19 this fall, greatly compounding the challenges of seasonal influenza and putting an unprecedented strain on our health care system. Without clear planning and implementation of the steps that I and other experts have outlined, 2020 will be darkest winter in modern history.