It is more disturbing, however, that almost no public attention has been given to infection itself as a potential cause of children’s behavioural and learning problems.
This makes no sense. We know that COVID harms the brain. Neuroinflammation, brain shrinkage, disruption of the blood-brain barrier and more have been documented in adults, as have cognitive deficits. These deficits have been measured as equivalent to persistent decreased IQ scores, even for mild and resolved infections. Millions of people have, or have experienced, “brain fog.” What, then, do we guess a child’s COVID-induced “trouble with focusing or memory” might be?
When you put together the estimate that 10 to 20 percent of infected kids may experience long-term symptoms, that many of the most common symptoms affect cognition, energy levels and behavior, and that children are being periodically reinfected, you have a scientific rationale to partly explain children’s widely reported behavioural and learning challenges.