Christian Drosten

"We don't really know enough about this (COVID-19) disease to be sure what it means when the viral load decreases in the throat, for instance."

"It's the typical sloppy coronavirus immunity. ... The second infection is a mild infection."

"We have already gone a long way along this path through vaccination. We must now complete this process so that we can reach the endemic phase in the course of 2022 and declare the pandemic state to be over."