CALCA and Pleural effusion: Eosinophilic/hyaline membranes adhered in the alveolar space(↑) Lung weight; Pleural effusion; Haemorrhages; Alveolar and interstitial edema (Proteinaceous); Alveolar capillary permeability (Evans blue); Alveolar infiltration with leukocytes (macrophages-containing Hz, neutrophils, lymphocytes) and haemorrhages; Levels of IFN-γ, TNF-α, IL-10, IP-10/CXCL10, MIP-2/CXCL2, MCP-1/CCL2, KC/CXCL1, VEGF, PIGF in the lung tissue homogenate