The hospitals are eerily quiet, except for Covid-19.

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.

Our hospital is usually so full that patients wait in gurneys along the walls of the emergency department for a bed to become available on the general wards or even in the intensive care unit. We send people home from the hospital as soon as possible so we can free up beds for those who are waiting. But the pandemic has caused a previously unimaginable shift in the demand for hospital services.

Some of the excess capacity is indeed by design. We canceled elective procedures, though many of those patients never needed hospitalization. We are now providing care at home through telemedicine, but those services are for stable outpatients, not for those who are acutely ill.