Yet we may have disastrously underestimated one of the most serious sequelae: infection of the brain and nervous system. And we may have missed the neurological damage done to children and young adults who seem to have recovered from COVID-19.

Long COVID may include symptoms ranging from intense fatigue to anxiety to blood clots to heart conditions to loss of the sense of smell.

Many of these symptoms result from neurological damage, even in “mild” cases.