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.
acute lobar pneumonia. a form of pneumonia characterized by lobar distribution of the consolidation of the serofibrous fluid exuded by the alveoli. The condition results from infection by a virulent type of Streptococcus pneumoniae. The onset is sudden.