The major intestinal pathogens which are non-lactose fermenters are_________________?
Correct answer: A. Salmonella
- A. Salmonella
- B. Klebsiella
- C. Escherichia
- D. Paracolons
Explanation
Salmonella is a major intestinal pathogen that does not ferment lactose, so its colonies remain pale on MacConkey agar. Klebsiella and Escherichia are lactose fermenters, while the term paracolons is less specific.
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