Under the leadership of Miriam Merad, MD, PhD, immunologists at the Icahn School of Medicine at Mount Sinai have created a quick test that monitors a patient’s inflammatory response to COVID-19, and also helped launch a clinical trial that uses the drug sarilumab to manage this response. In trying to fight the COVID-19 virus, the immune system may mount a major response, which can lead to excess inflammation and in severe cases, fatality. The test enables frequent monitoring of patients at risk, potentially guiding treatment.