How COVID-19 may trigger dangerous blood clots

Some of COVID-19’s dangerous blood clots may come from the immune system attacking a patient’s body rather than going after the virus, a new study suggests. It’s known that excessive inflammation from an overactive immune response can spur the clots’ formation in severely ill patients (SN: 6/23/20). Now researchers are teasing out how. Some of […]

Two immune system chemicals may trigger COVID-19 cytokine storms

Exactly how the coronavirus kills is a mystery. But part of the problem may be a partnership between just two immune system chemicals that triggers deadly organ damage. In mice, a combination of immune chemicals called TNF alpha and gamma interferon trips a domino chain of biochemical reactions that ultimately leads to three types of […]