Abstract: Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. Journal Pre-proof Association of Vitamin D receptor gene polymorphisms and clinical/severe outcomes of COVID-19 patients Rasoul Abdollahzadeh, Mohammad Hossein Shushizadeh, Mina Barazandehrokh, Sepideh Choopani, Asaad Azarnezhad, Sahereh Paknahad, Maryam Pirhoushiaran, S. Zahra Makani, Razieh Zarifian Yeganeh PII: S1567-1348(21)00398-1 DOI: https://doi.org/10.1016/j.meegid.2021.105098 Reference: MEEGID 105098 To appear in: Infection, Genetics and Evolution Received date: 15 May 2021 Revised date: 11 September 2021 Accepted date: 27 September 2021 Please cite this article as: R. Abdollahzadeh, M.H. Shushizadeh, M. Barazandehrokh, et al., Association of Vitamin D receptor gene polymorphisms and clinical/severe outcomes of COVID-19 patients, Infection, Genetics and Evolution (2021), https://doi.org/10.1016/ j.meegid.2021.105098 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2021 Published by Elsevier B.V. Journal Pre-proof Association of Vitamin D receptor gene polymorphisms and clinical/severe outcomes of COVID-19 patients * Rasoul Abdollahzadeh 1, RASOUL142857@gmail.com, Mohammad Hossein Shushizadeh 2, Mina barazandehrokh3, Sepideh Choopani4, Asaad Azarnezhad5,* asad.azarnezhad@muk.ac.ir, Sahereh Paknahad1, Maryam Pirhoushiaran 1, S.Zahra Makani6, Razieh, Zarifian Yeganeh1 Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran 2 Pasteur Medical Lab, Shush Danial, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. 3 Faculty of Advanced Sciences and Technology, Pharmaceutical Sciences Branch, Islamic Azad University of 1 (IAUPS), Tehran, Iran Tehran Medical Sciences, Islamic Azad University, Tehran, Iran 5 Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical ro 4 Babol Razi Pathology and Genetic Laboratory, Babol, Iran. re 6 -p Sciences, Sanandaj, Iran lP # Rasoul Abdollahzadeh and Mohammad Hossein Shushizadeh contributed equally to this work. * Correspondent author at: Asaad Azarnezhad Postal Address: Liver and Digestive Research Center, Research Institute for Health Development,..