Add Yahoo as a preferred source to see more of our stories on Google. A clinical trial volunteer participates in Johnson & Johnson's study to test a coronavirus vaccine. Janssen All of the COVID-19 ...

A new scientific paper says there is evidence that side effects like fever, chills and muscle pain following COVID-19 vaccinations are a sign of a robust antibody response. Researchers studied more ...

If you're dealing with the chills but don't have a fever, you may think you're sick or that there's gotta be a fever brewing—especially if you're having symptoms during flu season. So how do you ...

Fever, chills and fatigue may all be signs of vigorous antibody production, a new study finds. By Apoorva Mandavilli Apoorva Mandavilli has been writing about immunity to the coronavirus since March ...