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Updated: Oct 12, 2025

Studying Chronic Exposure of Mice to Ultraviolet B Radiation
Published on: August 19, 2025
SARS-CoV-2: Can sunlight exposure reduce the risk of developing severe consequences of COVID-19?
Jibran Sualeh Muhammad1, Ruqaiyyah Siddiqui2, Naveed Ahmed Khan1
1College of Medicine, University of Sharjah, Sharjah, United Arab Emirates.
Abstract:
Herein it is proposed that sufficient exposure to sunlight (UVB) modulates host gene expression, offering protection against severe consequences of COVID-19. This could be in addition to sunlight (UVB)-mediated protection by directly inactivating the virus and limiting the viral load. It is suggested that inhibition of CCR2, DPP9, HSPA1L, IFNAR2, OAS1, and TYK2 may, in part, explain UVB-mediated protection against severe consequences of COVID-19.
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