The Food and Drug Administration has approved Moderna's new COVID-19 vaccine, days after the federal government tightened ...

This is the first real-world evidence that expanded prophylactic antibiotic use can reduce community transmission of iGAS.

Discover why sugar intake causes recurring infections by weakening immunity and feeding harmful bacteria and yeast.

Learn when rashes signal medical emergencies. Color, location, and symptoms reveal dangerous conditions needing urgent care.

Having a previous SARS-CoV-2 infection provided a gradient of protection against reinfection, especially against severe forms of COVID-19.

A new study warns that common anti-inflammatory drugs might leave patients vulnerable to severe viral infections.

A new study finds that the Covid-19 virus can reprogram immune cells to weaken the body's defence. This discovery could lead ...