Investigation of choice of diphtheria carrier is: (A) Throat Swab Culture, (B) Gram's stain, (C) Albe's stain, (D) Zeil Nelson's stain
Answer is A. One or two swabs from the lesions are collected under vision, using a tongue depressor. Smears stained with methylene blue or one of the special stains (Neisser's or Albes) will show the bacilli with metachromatic granules and in the typical arrangement. Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 242