As a rule, the farther up in the urinary tract the infection is located, the more serious it is. 1  The upper urinary tract is composed of the kidneys and ureters. 2  Infection in the upper urinary tract generally affects the kidneys (pyelonephritis), which can cause fever, chills, nausea, vomiting, and other severe symptoms.
Citrobacter freundii is a species of facultative anaerobic. Gram-negative bacilli of the Enterobacteriaceae family. The bacteria are long rod-shaped with a typical length of 1â5 Î¼m. Most C. freundii cells are surrounded by several flagella used for locomotion, but a few are not mobile.It can be found in soil, water, sewage, food, and the intestinal tracts of animals and humans.. freundii is responsible for reducing nitrate to nitrite in the environment. This conversion is an important and crucial stage in the nitrogen cycle. These bacteria also help in recycling nitrogen. C. freundii has also been investigated for biodegradation of tannic acid used in tanneries.
It is a normal bacteria in your gut, but definately does not belong in your bladder or kidneys. Citrobacter is not considered to be an enteric pathogen because it is normal gut flora. When plated, Citrobacter colonies bare a strong resemblance to E. coli colonies. This group of bacteria is of small clinical interest. C. freundii is suspected to cause diarrhea and possibly extraintestinal infections.