Real-life Evidence of Lower Lung Virulence in COVID-19 Inpatients Infected with SARS-CoV-2 Omicron Variant Compared to Wild-Type and Delta SARS-CoV-2 Pneumonia.

"Declarations Competing interestThe authors declare no competing interests. Conflict of interestThe authors have no relevant financial or non-financial interests to disclose. Ethical ApprovalThis study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Inter-Department Ethics Committee A.O.U. Città della Salute e della Scienza, A.O. Ordine Mauriziano di Torino, and A.S.L. Città di Torino (Torino, Italy, number 0065839–00304/2020). Consent to ParticipateInformed consent was obtained from all individual participants included in the study. Competing interest The authors declare no competing interests. Conflict of interest The authors have no relevant financial or non-financial interests to disclose."

"Funding The authors declare that no funds, grants, or other support were received during the preparation of this manuscript."