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.
Many germs can cause pneumonia. Examples include different kinds of bacteria, viruses, and, less often, fungi. Most of the time, the body filters germs out of the air that we breathe to protect the lungs from infection.any types of bacteria can cause pneumonia. Bacterial pneumonia can occur on its own or develop after you've had a cold or the flu. This type of pneumonia often affects one lobe, or area, of a lung. When this happens, the condition is called lobar pneumonia.