Lisa Sieverts

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COVID-19 and Mast Cell Activation Syndrome

Covid-19 hyperinflammation and post-Covid-19 illness may be rooted in mast cell activation syndrome

Another mystery about the Covid-19 pandemic is why the infection is mildly symptomatic or even asymptomatic in the majority of those who are infected but is severely symptomatic, often life-threatening, in a sizeable minority. In other words, what causes the immune system to so catastrophically suddenly overreact in certain Covid-19 patients while remaining properly regulated in the majority?