Robert F. Kennedy Jr. petitioned the FDA to revoke its authorization for the Covid-19 vaccine just six months after it was ...

New research highlights multiple infections, severity, and vaccination status as significant risk factors for developing long ...

The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is ...

Whether Covid-19 was unleashed by a laboratory mishap or spilled over from animals remains an enduring, fiercely contested ...

Jake Sullivan, the outgoing national security adviser, is asking a panel of outside experts to examine the government’s ...

The chronic illnesses that make doctors doubt their patients often start after what “should” be a short-lived sickness—like ...

With the acute phase of the Covid-19 pandemic fading even as the coronavirus persists and evolves, a new normal is taking shape around the world. But the report, on the experiences of 13 patients ...

People with immune system health problems continue to take precautions against COVID-19 five years into the pandemic.

Beyond the profound personal effects of long COVID, losing those workers can also have a significant impact on New ...