Multiple choice

Hektoen enteric agar is a selective and differential agar. Green colonies on Hektoen enteric agar are indicative of which of the following?

  1. Salmonella

  2. Shigella

  3. Klebsiella

  4. Escherichia
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Shigella produces green colonies on Hektoen enteric agar because it does not produce H2S from thiosulphate or ferric ammonium citrate in the medium.

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