Results of the Cologne Corona Surveillance (CoCoS) project– a cross-sectional study: survey data on risk factors of SARS-CoV-2 infection, and moderate-to-severe course in primarily immunized adults

• Max ObersteUniversity of Cologne
• Teodora AsenovaUniversity of Cologne
• Angela ErnstUniversity of Cologne
• Kija Shah‐HosseiniUniversity of Cologne
• Nadja SchnörchUniversity of Cologne
• Michael Buess
• Kerstin Daniela RosenbergerUniversity of Cologne
• Annelene KossowUniversity of Münster
• Felix DewaldUniversity of Cologne
• Florian NeuhannHeidelberg University
• Martin HellmichUniversity of Cologne