| Hektoen enteric (HE) agar |
an agar medium containing peptone, bile salts, yeast extract, lactose, sucrose, salicin, sodium chloride, sodium thiosulfate, ferric ammonium citrate, acid fuchsin, and bromthymol blue. It is a selective medium used for the primary isolation and identification of enteric pathogens, especially coliform organisms, salmonellae, and shigellae.
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