The XFG variant of the severe acute respiratory syndrome coronavirus 2 as continued to spread as the U.S. heads into peak Summer travel season. (Photo by I RYU/VCG via Getty Images) There’s another ...

NPR's Juana Summers talks with infectious disease expert Dr. Peter Chin-Hong about the new rules regarding access to COVID-19 vaccines. UNIDENTIFIED REPORTER #1: New rules are now causing some ...

The new research provides evidence that Covid reinfections can increase the risk of long-term health consequences. By Pam Belluck Pam Belluck has covered long Covid since the condition first emerged.

Scientists are uncovering a new possibility behind long COVID’s stubborn symptoms: hidden infections that awaken or emerge alongside SARS-CoV-2. Evidence is mounting that viruses like Epstein-Barr and ...