Cattle May Serve as a Reservoir for E

question 32

Multiple Choice

Cattle may serve as a reservoir for E.coli strain O157:H7 because this strain does not cause any disease in cattle.This strain of E.coli can cause a potentially lethal Shiga toxin-mediated hemolytic uremic syndrome (HUS) in humans.Why don't cattle develop HUS?

• A)The shiga toxin is not expressed in cattle.
• B)E)coli is unable to effectively colonize the bovine intestine.
• C)A protease in the cattle destroys the toxin.
• D)Bovine kidney cells do not have a shiga toxin receptor.
• E)They produce antibody against the shiga toxin.

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Definitions:

Right Ventricle

The lower right chamber of the heart that pumps deoxygenated blood to the lungs for oxygenation.

Decreased Immunity

A reduction in the body's ability to fight infections and diseases, which can be caused by factors such as malnutrition, illness, or certain medications.

Vaccinations

Medical procedures that involve the administration of vaccines to stimulate the body's immune response against specific infectious diseases.

Tuberculosis Skin Testing

A method to test for tuberculosis exposure by injecting a small amount of testing fluid under the skin.