According to the best available estimate, there may be between 10,000 and 50,000 Covid-19 patients with neurological damage in the world. The calculation is weak, because it is based on what is known about other coronaviruses such as SARS and MERS, but at least it puts a provisional number on an undoubted phenomenon that doctors across half the planet have noticed in recent months. With 28 million confirmed cases of covid in the world, the 50,000 that present cerebral symptoms do not exceed 0.2%. But complications are usually serious and have attracted the attention of neurologists.
