Vitamin D deficiency correlates with a reduced number of natural killer cells in intensive care unit (ICU) and non-ICU patients with COVID-19 pneumonia

• Alice G. Vassiliou,
• Edison Jahaj,
• Maria Pratikaki,
• Chrysi Keskinidou,
• Maria Detsika,
• Eirini Grigoriou,
• Katherina Psarra,
• Stylianos E. Orfanos,
• Alexandra Tsirogianni,
• Ioanna Dimopoulou,
• Anastasia Kotanidou

Affiliations

Alice G. Vassiliou

First Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece

Edison Jahaj

First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece

Maria Pratikaki

Biochemical Department, Evangelismos Hospital, Athens, Greece

Chrysi Keskinidou

First Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece

Maria Detsika

First Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece

Eirini Grigoriou

Department of Immunology and Histocompatibility, Evangelismos Hospital, Athens, Greece

Katherina Psarra

Department of Immunology and Histocompatibility, Evangelismos Hospital, Athens, Greece

Stylianos E. Orfanos

First Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece; First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece; Second Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, “Attikon” Hospital, Athens, Greece

Alexandra Tsirogianni

Department of Immunology and Histocompatibility, Evangelismos Hospital, Athens, Greece

Ioanna Dimopoulou

First Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece; First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece

Anastasia Kotanidou

First Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece; First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, Athens, Greece; Corresponding author: Anastasia Kotanidou, MD, PhD, Professor, 1st Department of Critical Care Medicine and Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, “Evangelismos” Hospital, Greece. Tel: +30 210 7243320, Fax: +30 210 7216503.