Abstract
Staphylococcus spp., Pseudomonas spp., and Acinetobacter spp. are 3 bacterial respiratory pathogens widely found in the oral cavity of hospitalized patients. Recent studies indicate that saliva can play an important role in the development of pneumonia, for example, acting as a vehicle for bacteria residing in the oral cavity, which can be aspirated into the lungs. In addition, oral anaer…