Men and women after thoracic organ transplantation (heart, lung, combined heart-lung) with a minimum age of 18 years who have received a first and second vaccination against SARS-CoV-2.Precondition: Present signed and dated study consent.

Men and women after thoracic organ transplantation (heart, lung, combined heart-lung) with a minimum age of 18 years who have received a first and second vaccination against SARS-CoV-2.Precondition: Present signed and dated study consent.