Other hypotheses point to innate aspects of the immune system that differ with age. For example, children have more adaptive immunity (optimized for pathogens they have not previously seen), whereas adults have more memory-driven immunity (geared to pathogens they have encountered before).33 The immune cells dedicated to fighting foreign agents in children may be more efficient than those in adults, enabling them to make more effective antibodies against pathogens, including SARS-2.34 Younger immune systems may also be too immature to experience cytokine storms, the damaging immune-system
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