Most severe COVID-19 infections start in the brain, not the lungs

Researchers at Georgia State University have found evidence that the most severe cases of COVID-19 infection start in the brain, not in the lungs. When the team infected the nasal passages of mice with SARS-COV-2, they observed a rapid, escalating attack on the brain that triggered severe illness. The symptoms associated with COVID-19 infection of the brain intensified even after the lungs were successfully clearing themselves of the virus. Professor Mukesh Kumar, the lead researcher of the study, said the findings have implications for understanding the wide …