College
Essay
Miscellaneous
Pages 7 (1757 words)
Download 0
Escherichia coli (E. coli), is among the important species of bacteria that dwells in the lower intestines of mammals. It is also known as gut flora which is useful when located in the large instestine and assists with waste processing, vitamin K production, and food absorption…

Introduction

It is abundant in human body and the number of individual E. coli bacteria found in the human feces every day averages between 100 billion and 10 trillion. E-coli is also found in the environment such as on the edge of hot springs. Although most strains of E. coli are not regarded as pathogens, there are also pathogenic strains of E. coli that when ingested, causes gastrointestinal illness in healthy humans (FDA 2002). For example, the E. coli strain O157:H7 is one of hundreds of strains of the bacterium that causes serious illness in humans (Centers for Disease Control and Prevention, 2006).
E. coli are unable to sporulate similat to all Gram-negative organisms. Hence the treatments which kill all active bacteria, such as pasteurization or simple boiling of contaminated water, are most effective for their eradication. The complected processess such as sterilization which deactivates spores in not essential for e-coli. E. coli grow best in vivo or at the higher temperatures as they are mostly adapted to the mammalian intestines. However their growthe is restricted in cooler temperatures found in soil and other environments.
E. coli is basically responsible for many intestinal and extra-intestinal infections. Some of these infewctions incluse meningitis, peritonitis, urinary tract infections, septicemia, Gram-negative pneumonia and mastitis. Based on the virulence properties of the enteric E. ...
Download paper
Not exactly what you need?

Related papers

Experiment on the bacterium Escherichia coli
Escherichia coli (E.coli) are gram negative, non-spore forming strains of bacterium that usually inhabit the intestinal tracts of humans and other warm-blooded animals. They are facultative anaerobes that ferment simple sugars like glucose into lactic, acetic and formic acids (HITM, 2006). Most E coli strains are harmless and even are beneficial in the sense that they assist the host by destroying…
Molecular Microbiology
The commoner intravenous catheter-related infections are exit-site infections, as in this case, often with erythema around the area where the line penetrates the skin.…
Rapid Colony Transformation of E -Coli with Plasmid DNA
Recovery: LB broth is added to the DNA/cell suspension and incubated at 37C before being put on plates with different selected antibiotic resistant markers. Transformed cells recover from the treatment, amplify the transformed plasmid and begin to express the antibiotic resistant strain.…
E-Coli
It is abundant in human body and the number of individual E. coli bacteria found in the human feces every day averages between 100 billion and 10 trillion. E-coli is also found in the environment such as on the edge of hot springs. Although most strains of E. coli are not regarded as pathogens, there are also pathogenic strains of E. coli that when ingested, causes gastrointestinal illness in…
Epidemiologic Investigation
In the context of this project, the disease agent is a particular strain of E. coli that is well regarded as a food borne pathogen responsible for an infectious diarrheal disease. By definition, the characterization of the disease is intimately related to characterization of the agent that initiates or perpetuates the disease process.…
Cell Biology Test
It is apparent that the plant, even though currently robust and healthy, contains recessive genes responsible for the defective chloroplasts. These recessive genes were passed on to the next generation and became dominant with some of the offspring .…
Swimming pools
There are many reasons for beaches being contaminated. "Fecal contamination occurs due to improperly constructed and operated septic systems and sewage treatment plants, manure spills, storm water runoff from lands with wildlife and pet droppings, or direct contamination from waterfowl, livestock, or small children in the water" (Iowa Department of Natural Resources). Other reasons are the…