What illness is often associated with E. coli O157:H7 strains?

What illness is often associated with E. coli O157:H7 strains?

• A. Tuberculosis
• B. Diarrheal disease
• C. Typhoid fever
• D. Cholera

Answer: (B)

E. coli O157:H7 is a specific strain of Escherichia coli that is known to cause severe diarrheal disease. This strain produces a potent Shiga toxin, which can lead to gastrointestinal symptoms including severe abdominal cramps, bloody diarrhea, and sometimes even more serious complications such as hemolytic uremic syndrome (HUS). The association of E. coli O157:H7 with diarrheal disease is well-documented, stemming from its presence in undercooked ground beef, unpasteurized dairy products, and contaminated fruits and vegetables. Unlike the other illnesses listed, which are caused by different pathogens or organisms, the hallmark effect of E. coli O157:H7 is its ability to lead to severe, and often bloody, diarrhea, making diarrheal disease the most relevant and accurate context for this particular strain. This reinforces the critical understanding of foodborne illnesses and the importance of proper food handling and cooking techniques to prevent infection.

E. coli O157:H7 is a specific strain of Escherichia coli that is known to cause severe diarrheal disease. This strain produces a potent Shiga toxin, which can lead to gastrointestinal symptoms including severe abdominal cramps, bloody diarrhea, and sometimes even more serious complications such as hemolytic uremic syndrome (HUS).

The association of E. coli O157:H7 with diarrheal disease is well-documented, stemming from its presence in undercooked ground beef, unpasteurized dairy products, and contaminated fruits and vegetables. Unlike the other illnesses listed, which are caused by different pathogens or organisms, the hallmark effect of E. coli O157:H7 is its ability to lead to severe, and often bloody, diarrhea, making diarrheal disease the most relevant and accurate context for this particular strain. This reinforces the critical understanding of foodborne illnesses and the importance of proper food handling and cooking techniques to prevent infection.