From SNG board21 Dec 2020 13:24
Scientists find 2 phases of lung infection in severe COVID-19Today 13:09
“In a new study, researchers found there are two phases of lung infection in people with severe COVID-19. The research was conducted by a team at Massachusetts General Hospital (MGH).
The analyses revealed two phases of infection in patients with severe COVID-19 pneumonia.
The early phase is defined by high levels of virus in the lungs that trigger patients’ cells to express genes involved with the interferon pathway, a critical part of the immune response.
In the later phase, the virus is no longer present, but the damage to the lungs is too severe for recovery.”