Best culture for primary isolation of H. influenzae?: (A) Blood agar, (B) Fildes agar, (C) Nutrient broth, (D) Tryptose agar
Answer is B. Ans. is 'b' i.e., Fildes agarH. influenzae does not grow on blood agar.Culture media used for isolation are Fildes agar (best for primary isolation), Levinthal medium (capsulated strains show iridescence) and Chocolate agar.