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Dynamics of Respiratory Infections

Several chronic inflammatory diseases of the lung have been recently associated with alterations in the composition of the airway microbiome. Moreover, the lung microbiota can be classified according to its predominance either of proinflammatory bacteria, such as strains from the genera S taphylococcus, Pseudomonas , and Haemophilus or of low-stimulatory bacteria from genera like Prevotella, Streptococcus , and Veillonella . Moreover, it is already known that the commensal lung microbiota can influence host immune system activation by producing numerous structural ligands and metabolites such as lipopolysaccharide, peptidoglycan, and secondary metabolites. However, the interaction between the lung microbiota and the airway epithelium, as well as their interactions with pulmonary pathogens, are not well understoo