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Abstract While microaspiration of oropharyngeal secretions is usually the cause of most cases of community- and hospital-acquired pneumonias, macroaspiration of oropharyngeal or upper gastrointestinal contents is the cause of aspiration pneumonia (AP). Chemical pneumonitis (CP) is triggered by aspiration of…
Gram-negative bacteria are ubiquitous microorganisms of particular concern, especially the gram-negative bacilli (GNB), because of the fast spread of multidrug resistance (MDR). GNBs have intrinsic abilities to find new pathways of resistance and to transmit genetic material that allows other…