A friend of our family is having a hard time with something called post-polio syndrome. Dear Reader: You’re not alone is seeing the similarities between long-haul COVID-19 and post-polio syndrome. Both long-haul COVID-19 and post-polio syndrome occur only in a subset of survivors. Long-haul COVID-19 is so new that we don‘t yet know how often it occurs, but it may be as many as 20% of patients with COVID-19. The hope is that, as research continues, effective treatments for long-haul COVID-19 will be found.