A 66 year old man with bloody diarrhea has an isolate of escherichia coli cultured from his stool...


A 66 year old man with bloody diarrhea has an isolate of escherichia coli cultured from his stool that is thought to be the cause of diarrhea. A 19-year old woman with a bladder infection has an isolate of E. coli cultured from her urine that is thought to be the cause of the infection. How can the same bacteria be identified in two very different hosts with two very different illnesses?

Bloody Diarrhea:

Bloody diarrhoea falls under the category of critical condition. In this state, blood gets mixed in the watery stools. This state proves to be extremely severe and also proves to be lethal.

Answer and Explanation: 1

As per the above scenario, it is expressed that a 66-year-old man has suffered from bloody diarrhoea while a 19-year old woman has suffered from a bladder infection. It is explained that both of these conditions arise due to the action of bacteria named Escherichia coli. In abbreviated form, it is written as E.coli. It is acknowledged that few strains of E. coli such as O157:H7 proves to be the cause of stomach cramping and also results in the occurrence of vomiting and bloody diarrhoea. The infection of the bladder is demarcated as cystitis. This condition is caused by the action of bacteria named E. coli. Same bacteria can be identified in two different hosts as they are present in numerous amounts in the environment. Also, they possess diverse disease-carrying capacities. So, they can show their existence in different hosts and also cause different diseases.

Learn more about this topic:

Escherichia coli (E. coli) as a Model Organism or Host Cell


Chapter 6 / Lesson 16

Escherichia coli, better known as E. coli, is a mammalian gut bacteria frequently used by scientists as a model organism or host cell to research biological phenomena with the intention of applying discoveries to other biological species. Explore the past and present of E.coli outbreaks, implications of genetic manipulation, and how model organisms assist with biological research.

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