The New York Times
@nytimesIt is too early for scientists to know much about the relationship between Omicron, vaccination and long Covid. Here is a sketch of what scientists have learned and the many questions still to be answered.https://nyti.ms/3Ik6ALl
Many patients with COVID-19 develop brain fog and other cognitive symptoms months later. Their cerebrospinal fluid may hold clues to why this is happe ...