Immune systems, better blood vessel health: What may spare children from severe Covid-19

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Children writing by hand in a classroom.
Children writing by hand in a classroom.
Klaus Vedfelt

The new coronavirus (which causes Covid-19 disease) spares most children, and experts from the Murdoch Children's Research Institute (MCRI), the University of Melbourne and the University of Fribourg have weighed in to explain why this is the case.

After reviewing a body of global studies on Covid-19 and children, they concluded that the underlying factors responsible for the age-related differences in Covid-19 severity are associated with the differences in immune systems and better blood vessel health in children.

Professor Nigel Curtis, from MCRI and the University of Melbourne, said in a news release that although previous research looking into disease severity and mortality disparity exists, there is a lack of research that explains why exactly Covid-19 severity rises steeply between the ages of 60 and 70.

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