Study Design
This is a retrospective analysis of medical records, data from patients with confirmed SARS-CoV-2 in Klinikum Altmühlfranken Weißenburg Hospital, Germany from March 1, 2020 to March 31, 2020 were reviewed. All the methods were performed per the relevant approved guidelines, regulations, and declaration of Helsinki. According to the German Medical Association Professional Code of Conduct in Bavaria, ethical approval was not necessary due to the retrospective nature of our investigation and the complete anonymity of reported data(2020-1096) .