Not long ago, we were all masters of covid math. When the pandemic began in 2020, the number stuck in our minds was 14: If we (or any close contact) got a positive COVID-19 test, we were supposed to ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Experts aren't quite sure what's in store for us this cold, flu and COVID season. But with a new flu variant beginning to spread in the U.S. and low COVID vaccination rates, this may be a more severe ...

Experts expect cases to rise again this winter. Here’s the latest on symptoms, treatments and testing. By Dani Blum Dani Blum has reported on Covid since the spring of 2020. There are few constants ...

As summer comes to an end, COVID-19 cases are on the rise again in California. While respiratory viruses usually peak in the winter, the novel coronavirus can also surge in the warmer months.

Even as the acute phase of the COVID-19 pandemic fades, the world continues to wrestle with its aftermath — and nowhere is that more evident than in the enduring challenge of Long COVID. The condition ...