Could Newly Found “Peacekeeping” Cells Be a Weapon against COVID-19?

To fight a respiratory infection, the body needs a two-pronged attack. First, it sends immune cells to the scene to destroy the pathogen. Then the defense system must keep those first responders from spiraling out of control. If this attempt at “peacekeeping” fails, a run-of-the-mill fever and cough can escalate to a life-threatening illness—which happened to the tens of thousands of COVID-19 patients who have succumbed to the global pandemic caused by the SARS-CoV-2 virus.