Big news: A pair of new papers confirm scientists’ hunch that the body’s “vanguard virus fighter”—type I interferon—is out of action in severe COVID-19 cases.  

A flurry of research is identifying patterns that set apart COVID-19 patients who are prone to deadly immune system overreactions. During these “cytokine storms,” molecules leading the first line of immune defense fail to stand down so that antibodies and T cells can take…

As COVID-19 cases pile up, doctors have observed a tragic pattern: some patients, even when they’ve begun to feel better, are experiencing a “second week crash.”   Why? The body’s immune system may be overreacting to the virus in what’s called a “cytokine storm.”…