Fig. 2From: The prior infection with SARS-CoV-2 study (PICOV) in nursing home residents and staff - study protocol description and presentation of preliminary findings on symptoms.Flow chart of the study population. 1,359 participants of nursing homes provided us with an informed consent. Reasons for withdrawal are provided for the 116 drop-outs. 33 participants did not complete the baseline questionnaire, resulting in a final study population of 1,226 with 374 nursing home residents and 852 staff membersBack to article page