Doctors from Germany and Belgium said that the coronavirus is safe for brain cells, a scientific paper published in the journal Cell.
Scientists have studied anosmia – loss of sense of smell, which doctors consider one of the main symptoms of COVID-19. They analyzed the data of 85 patients, including those who died a few days after infection.
The experts concluded that the main objects of infection with SARS-CoV-2 in the olfactory epithelium of the human nasal cavity are the so-called sustentacular or supporting cells. Scientists have found no evidence that the coronavirus infects sensory neurons responsible for the sense of smell.
“The parenchymal tissue of the olfactory bulb was also not affected. Thus, SARS-CoV-2 does not look like a neurotropic virus,” they said about the effect of coronavirus on brain cells.
The study refutes earlier assumptions that the virus affects the neurons of the olfactory mucosa.