Scientists examine the unique immune systems of children as more fall victim to COVID

More than just masks:These membranes act like the layered stone walls that protected medieval cities from invaders. They’re made of cells called epithelial cells — these also line many internal organs — which sit side by side with key soldiers in the immune system called dendritic cells and macrophages, said Betsy Herold, chief of the division of pediatric infectious diseases at the Albert Einstein College of Medicine.

In comparison, adults have far fewer sentinels on the lookout and take about two days to respond to the virus, Eils said. By that time, the virus may have multiplied exponentially, and the battle becomes much more difficult. Like soldiers who kill their comrades with friendly fire, a hyperactive immune system can cause collateral damage, triggering an inflammatory cascade that tramples not just viruses, but also healthy cells throughout the body.acute respiratory distress syndrome

I didn't catch the urgent question in the title?.. but the answer can't come soon enough to.. blank?

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