I have heard this sentiment from fellow doctors across the United States and in many other countries. We are all asking: Where are all the patients with heart attacks and stroke? They are missing from our hospitals.

Yale New Haven Hospital, where I work, has almost 300 people stricken with Covid-19, and the numbers keep rising — and yet we are not yet at capacity because of a marked decline in our usual types of patients. In more normal times, we never have so many empty beds."