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Question 603
Microbiology → General
Classification
Question
SSBAQuestion Header
Which pairing identifies a Gram-positive rod and its associated disease?
Question Stem
Which organism-disease pairing also satisfies the classification Gram-positive rod?
Options
A
Bordetella pertussis — whooping cough
B
Yersinia pestis — plague
C
Campylobacter jejuni — gastroenteritis
D
Clostridium difficile — pseudomembranous colitis
E
Vibrio cholerae — cholera
Explanation
Clostridium difficile is a Gram-positive rod associated with pseudomembranous colitis. Each of the other organism-disease associations involves a Gram-negative organism.
Option Validity
A) Bordetella pertussis causes whooping cough but is a Gram-negative rod.
B) Yersinia pestis causes plague but is a Gram-negative rod.
C) Campylobacter jejuni causes gastroenteritis but is a Gram-negative rod.
E) Vibrio cholerae causes cholera but is Gram negative and comma-shaped.
Further Reading
Saxena R. Textbook for MRCOG-1: Basic Sciences in Obstetrics and Gynaecology. Chapter 6 — Microbiology and Immunology: Table 6.1 — Common forms of bacteria. Printed page 184.