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.
Pneumonia is an infection of one or both of the lungs. It's caused by bacteria, viruses, fungi, or chemical irritants. Pneumonia is a serious infection or inflammation in which the air sacs fill with pus and other liquid. Lobar pneumonia affects one or more sections (lobes) of the lungs.acterial pneumonia. This type is caused by various bacteria, the most common of which is streptococcus pneumoniae (pneumococcus). It usually occurs when the body is weakened in some way, such as by illness, malnutrition, old age, or impaired immunity, and the bacteria are able to work their way into the lungs.