Abstract Background Oxygen supplementation is commonly given to the patients with severe pneumonia including Legionella disease. Recent data suggested that apoptosis may play an important role. not only in the pathogenesis of Legionella pneumonia. but also in oxygen-induced tissue damage. https://www.bekindtopets.com/mega-save-Dharwad-Cotton-Saree-In-Grape-Purple-With-Contrast-Border-amazing-deal/