Most GI infections are caused by organisms in four groups (genera): Escherichia, Salmonella, Shigella, and Yersinia, although other members of the family have been implicated in diarrheal diseases.3 Most extraintestinal infections are caused by Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Proteus mirabilis, Pantoea agglomerans, ...
Lobar pneumonia is a form of pneumonia that affects a large and continuous area of the lobe of a lung.It is one of the two anatomic classifications of pneumonia (the other being bronchopneumonia).obar pneumonia usually has an acute progression. Classically, the disease has four stages: 1  Congestion in the first 24 hours: This stage is characterized histologically by vascular engorgement, intra-alveolar fluid, small numbers of neutrophils, often numerous bacteria. 2  Grossly, the lung is heavy and hyperemic.
1 Lobar pneumonia causes an inflammation of one lobe of a lung and typically involves all the airspaces in a single lobe. 2  Lipoid pneumonia is characterized by the accumulation of fats within the airspaces. 3  It can be caused by aspiration of oils or associated with airway obstruction.