
A German study says 40% of people infected with COVID don't know it. And long COVID symptoms may go unidentified. DW spoke to study author, Philipp Wild.
DW's Ben Fajzullin: As principal investigator of the Gutenberg COVID-19 study, how did you and your team determine that over 40% of Germans don't realize they have COVID-19?
Philipp Wild: We drew a population-based sample from local registry offices, and…