Hypothetical pathway for complement-mediated inflammation of the pulmonary alveolus in COVID-19. AEC‐II=Type II alveolar epithelial cell, EC=endothelial cells and MC=monocytes. [ARROW:id465489e4] Curved connections are not supported. [STIMULATION:id277783f4] Invalid interaction type. [STIMULATION:id316a089e] Invalid interaction type. [STIMULATION:ee449] Invalid interaction type. [STIMULATION:id63fdfd86] Invalid interaction type. [STIMULATION:a6270] Invalid interaction type. [STIMULATION:ead7d] Invalid interaction type. [STIMULATION:d25f2] Invalid interaction type. [STIMULATION:b8fdf] Invalid interaction type. [STIMULATION:ee8b6] Invalid interaction type. [STIMULATION:f7e7c] Invalid interaction type. [STIMULATION:id947b8359] Invalid interaction type. [STIMULATION:a768e] Invalid interaction type. [Label:ec307] Label cannot be part of reaction. Tranforming to Unknown [Label:dc66a] Label cannot be part of reaction. Tranforming to Unknown [Label:ea5e0] Label cannot be part of reaction. Tranforming to Unknown [Label:fdbc3] Label cannot be part of reaction. Tranforming to Unknown [Label:eb79e] Label cannot be part of reaction. Tranforming to Unknown [:e7170] Shape can not be part of reaction. Tranforming to Unknown [:d2348] Shape can not be part of reaction. Tranforming to Unknown [:a52e2] Shape can not be part of reaction. Tranforming to Unknown [:b211a] Shape can not be part of reaction. Tranforming to Unknown [HeterodimerAssociationReaction:b43ea] Reaction should contain at least 2 reactants. GraphId: b43ea [HeterodimerAssociationReaction:c0c8b] Reaction should contain at least 2 reactants. GraphId: c0c8b [HeterodimerAssociationReaction:iddfbe5d5d] Reaction should contain at least 2 reactants. GraphId: iddfbe5d5d [HeterodimerAssociationReaction:c9541] Reaction should contain at least 2 reactants. GraphId: c9541 [HeterodimerAssociationReaction:idffa1cf2f] Reaction should contain at least 2 reactants. GraphId: idffa1cf2f [HeterodimerAssociationReaction:e064f] Reaction should contain at least 2 reactants. GraphId: e064f [HeterodimerAssociationReaction:id4f1d31a3] Reaction should contain at least 2 reactants. GraphId: id4f1d31a3 [HeterodimerAssociationReaction:c91ea] Reaction should contain at least 2 reactants. GraphId: c91ea [Complex:c9db3] Empty element is invalid