The brain fog of long COVID and the long tail of the grief of COVID

Leakiness in the brain could explain the memory and concentration problems linked to long COVID.

In patients with brain fog, MRI scans revealed signs of damaged blood vessels in their brains, researchers reported February 22 in Nature Neuroscience. In these people, dye injected into the bloodstream leaked into their brains and pooled in regions that play roles in language, memory, mood and vision.

There has been little official recognition in the United States of the profound grief people have experienced and continue to experience. There is no federal monument to honor the dead — mourners have constructed their own memorials. A resolution to commemorate the first Monday of March as “COVID-19 Victims Memorial Day” awaits action by the U.S. Congress.

Many people are coping not just with the deaths of family and friends from COVID-19, but with how the pandemic robbed them of the chance to say goodbye to loved ones and grieve with their family and community. Researchers are studying the extent to which these losses rippled out into society and how the pandemic interrupted the grieving process.


Long COVID might not be all that different from any other post viral infection. The only main difference being a novel virus exposure so hundreds of millions got it at once as opposed to seasonal not as much.