Differences in the immune systems and better blood vessel health were among the factors protecting children from severe COVID-19, according to a new review.
A huge body of global COVID-19 literature was reviewed by experts at the Murdoch Children’s Research Institute (MCRI), the University of Melbourne and the University of Fribourg and published in the Archives of Disease in Childhood to unravel the reasons for age-related differences in COVID-19 severity and symptoms.
MCRI and University of Melbourne Professor Nigel Curtis said that while a number of hypotheses provided potential explanations as to why adults were at higher risk and children protected from severe disease and death from COVID-19, most do not explain why COVID-19 severity rises steeply after the age of 60-70 years.
Professor Curtis said in stark contrast to other respiratory viruses, severe disease and death due to…
