First: New strain sweeps through Europe.https://www.businessinsider.in/science/news/a-mutated-strain-of-covid-19-causes-most-new-infections-in-europe-and-was-spread-around-the-continent-by-tourists-scientists-say/articleshow/78931384.cms
A mutated coronavirus strain causes most new COVID-19 infections in Europe and was spread within the continent by tourists, scientists say
Second :
Brain Scans Show a Whole Spectrum of COVID-19 Abnormalities We Can't Fully Explain
https://www.sciencealert.com/how-covid-disturbs-brain-waves