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Legionellosis

"Apoptosis in Macrophages and Alveolar Epithelial Cells during Early Stages of Infection by Legionella pneumophila and its Role in Cytopathogenicity."

Published in TB and Outbreaks Week, March 8th, 1999

According to the authors' abstract of an article published in Infection and Immunity, "The hallmark of Legionnaires' disease is intracellular replication of Legionella pneumophila within cells in the alveolar spaces. Cytopathogenicity of this bacterium to the host cell has been well demonstrated, but the mechanisms of host cell death due to infection by L. pneumophila are not well understood. In this study, induction of apoptosis in macrophages and alveolar epithelial cells by L. pneumophila during early stages of infection was confirmed by using multiple criteria, including DNA fragmentation by agarose gel electrophoresis, terminal...

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