Select the micro-organism which is NOT an enteric pathogen.
Show Hint
- Staphylococcus aureus
- \textit{Vibrio cholerae}
- \textit{Escherichia coli}
- \textit{Salmonella typhi}
The Correct Option is A
Solution and Explanation
Step 1: Define enteric pathogen.
Enteric pathogens are microorganisms that primarily infect the intestine and are spread by the fecal–oral route, often causing diarrhea, dysentery, or typhoid.
Step 2: Examine each option.
- (B) Vibrio cholerae: Causes cholera, a classic intestinal infection.
- (C) Escherichia coli: Gut bacterium, with several pathogenic intestinal strains.
- (D) Salmonella typhi: Causes typhoid fever (enteric fever).
- (A) Staphylococcus aureus: Known mainly for skin, wound, and respiratory infections. It can cause food poisoning via enterotoxins but does not colonize the intestine as an enteric pathogen.
Step 3: Conclusion.
Thus, Staphylococcus aureus is not an enteric pathogen.
\[
\boxed{(A) \; Staphylococcus aureus}
\]
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