Cytokine Storms:Haywire Immune Response Eyed in Coronavirus Deaths

“You remove one piece of the storm, and it can quiet the whole thing,” said Kevin Tracey, president of the Feinstein Institutes for Medical Research at Northwell Health, which is testing Kevzara, an anti-inflammatory drug from Regeneron Pharmaceuticals Inc.

Doctors have used the term “cytokine storm” to describe an overactive immune response triggered by external pathogens such as bacterial and viral infections.