Other relevant comorbidities comprised pulmonary disease (e.g., chronic obstructive pulmonary disease, pulmonary fibrosis) in 14.5% (n = 24), previous or active cancer disease in 8.4% (n = 14), and conditions associated with immunodeficiency (e.g., due to chronic immunosuppression therapy after organ transplantation or hematological disease) in 8.4% (n = 14).