Biology of Sex Differences (Mar 2022)
Immune mechanisms associated with sex-based differences in severe COVID-19 clinical outcomes
Abstract
Highlights Although most COVID-19 patients develop only mild disease, some mount a pronounced inflammatory response that results in severe pneumonia, respiratory failure, and death. Male sex is a known risk factor for severe outcomes in COVID-19. Biological sex-based differences in COVID-19 severity and mortality are influenced by genetic and hormonal differences at the cellular and immunologic level. Biological sex-based differences are further complicated by environmental factors, namely social and cultural norms, that define gender roles which impact risk of infection and severe outcomes. Understanding sex-based differences in COVID-19 outcomes will help inform clinical decision algorithms and treatment strategies to optimize the care of COVID-19 patients.
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