A clinical specimen from a suspected deep fungal infection is inoculated onto Sabouraud Dextrose Agar (SDA). To inhibit bacterial contamination, which antibiotic is commonly added to the medium?
- A Chloramphenicol ✓
- B Penicillin
- C Vancomycin
- D Amphotericin B
Correct answer: A. Chloramphenicol
Explanation
Chloramphenicol is added to Sabouraud Dextrose Agar to inhibit bacterial contamination. Cycloheximide is added to inhibit saprophytic molds. Amphotericin A is an antifungal and would inhibit the pathogen. Penicillin and vancomycin are not standard additives for SDA.
Reference: Jawetz, Melnick, & Adelberg's Medical Microbiology, 28th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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