Which of the following is an example of direct damage due to bacterial infection?
A) the hemolysis of red blood cells in a staphylococcal infection
B) the invasion and lysis of intestinal cells by E. coli
C) the fever, nausea, and low blood pressure in a Salmonella infection
D) the excessive secretion of fluids in a Vibrio cholera infection
E) the uncontrolled muscle contractions in Clostridium tetani infection

Question

Quizplus · Accepted Answer

Option B describes direct damage to intestinal cells by E. coli, which involves invasion and lysis of the cells. The other options describe indirect effects or systemic responses to bacterial infection. Option A, hemolysis of red blood cells, is an example of an indirect effect. Option C, fever, nausea, and low blood pressure, are systemic responses to infection. Option D, excessive fluid secretion, is also an example of an indirect effect caused by bacterial toxins. Option E, uncontrolled muscle contractions, is caused by a toxin produced by Clostridium tetani, rather than direct damage by the bacteria.

Which of the Following Is an Example of Direct Damage