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Possible hypothesis of pulmonary embolism in COVID-19. Cytokine surge secondary to viremia causes endothelial dysfunction. Presence of anti-β2 glycoprotein/antiphospholipid antibodies in COVID-19 could be a potential cause of pulmonary thrombosis. IL-1: Interleukin-1, IL-1β: Interleukin-1β, IL-6: Interleukin-6, Interferon-γ: Interferon-γ, and TNF-α:Tumor necrosis factor-α.
