The following is an extract from a major study on long-haul COVID published in June 2021, done by Fair Health, an independent nonprofit that collects data for and manages the largest database of privately billed health insurance claims in the United States.

This is an April 15, 2021 article by Chris Robinson, Assistant Professor of Neurology and Neurosurgery at the University of Florida. This article is republished from The Conversation under a Creative Commons license.