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Hello, we are Proteus mirabilis. We cause urinary track infections. We can also cause wound infections, septicemia and pneumonias, mostly in hospitalized patients.

Normally we are found in the intestinal track, where we cause our human hosts no problems. But in a urinary track infection, we produce en enzyme called urease that hydrolyzes urea to ammonia and therefore makes the urine more alkaline. This results in the formation of crystals. These stones grow in size and can cause an obstruction that leads to kidney failure. Patients suffering from an infection will give off a charecteristic bad smell.

We are charecterised by our swarming motility, which is the ability of bacteria to move on a solid surface. Our numerous flagella allow us to get about and look pretty cool too.

Proteus mirabilis colonies on agar. CDC (PHIL #6691), 1976. http://commons.wikimedia.org/wiki/File:Proteus_mirabilis_01.jpg



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About Bacteria
What do bacteria look like?
Inside the bacterial cell

The Good Guys
Escherichia coli
Bacillus subtilis

The Bad Boys
Mycobacterium tuberculosis
Black death
Porphyromonas gingivalis
Chlamydia trachomatis
Salmonella typhi
Treponema pallidum
Proteus mirabilis
Streptococcus pyogenes
Neisseria gonorrhoeae
Helicobacter pylori
Mycobacterium leprae

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