Four viruses are circulating in the U.S., sparking concerns of a possible “quademic." Here's what to know about risk factors ...

COVID-19, influenza, RSV, and norovirus—have created what experts are calling a "quad-demic" in the U.S. Here's what to know ...

Winter also marks the height of the respiratory virus season, a period of sniffles, sneezes, congestion, fever and other ...

Viral sicknesses have risen in early 2025 amid the ongoing “quad-demic” in the U.S., referring to three respiratory viruses ...

Jan. 20, 2025 — Researchers have profiled the molecular structure and features of a key part of the deadly Nipah virus. Experiments in cells showe how changes in the viral polymerase -- a ...

In early December, health officials in the Democratic Republic of the Congo, or DRC, announced that an unknown illness had ...