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

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

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

The intervening years have both sped and crawled by, too busy at times to take stock of all that has changed, too plodding to ...

A report on the experiences of 13 patients found that the drug had no benefit for some and that some who benefited said the ...

Speculation about the alleged findings of a study on long COVID and post-vaccination syndrome spread widely among vaccine ...

Vaccination prior to COVID-19 infection does not significantly affect neurological symptoms in patients with postacute ...

The Supreme Court of the United States rejected a case on Monday filed by Robert F. Kennedy Jr. and former NBA player John ...

Rates of myalgic encephalomyelitis/chronic fatigue syndrome have dramatically increased since pre-pandemic times. A new large ...

In New York, the vaccination rate among people 65 and older for surveys taken between Oct. 27 and Nov. 30 was 36.8%, up from ...

— The flu, caused by influenza viruses that are always changing, leads to fever, chills, cough, sore throat, runny nose, body ...