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The US health authority, CDC, has published 40 percent of all SARS-CoV-2 infections without symptoms. “In my experience, the proportion is even higher, in children it is around 80 percent,” says Austrian infectious disease specialist Emil Reisinger, dean of the medical school at the University of Rostock in Germany. Five reasons to argue.
Innate immune system: Everyone has an innate, “nonspecific” immune system. This is the first line of defense, it reacts immediately to all pathogens and fights them with special defense cells and proteins: “This defense is particularly strong in children and adolescents. The rapid reaction of this part of our immune defense is probably one of the main reasons for the many infections without symptoms in young people. If this line of defense is unsuccessful, the specific acquired immune system is activated. This must first know the pathogen to be able to fight it specifically, but that takes longer, the virus has more time to spread.
