Which of the Following Is False of Campylobacter Jejuni Infections

question 12

Multiple Choice

Which of the following is false of Campylobacter jejuni infections?

• A) It is a Gram- negative, flagellated, spiral- shaped bacterium that grows best in microaerophilic conditions.
• B) Although symptoms usually resolve within a week, in immune- compromised patients the bacteria may cause bacteremia, which could lead to sepsis and possibly septic shock.
• C) After ingestion, the bacteria burrow through the mucosal layer of the intestine and migrate through intestinal epithelial cells to multiply just beneath the epithelial layer.
• D) Infections are primarily associated with eating undercooked beef or cross- contaminating foods with raw beef juices.
• E) Antibodies that recognize C. jejuni's lipopolysaccharides can cross- react with sugars on neurons that trigger an autoimmune response against the nervous system called Guillain- Barré syndrome.

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Definitions:

Complete Counterbalancing

An experimental design technique where all possible orders of presenting stimuli are used to control for order effects.

Matched Pairs Design

A method of assigning subjects to groups in which pairs of subjects are first matched on some characteristic and then individually assigned randomly to groups.

Matching Variable

A characteristic used to ensure that members of different groups in a study are similar on that particular attribute.

Dependent Variable

The variable in an experiment that is observed and measured, expected to change as a result of alterations to the independent variable.