Tryptic Soy Broth, Modified with 20 mg Novobiocin & Acid Digest Casein

TSB, Modified with 20mg Novobiocin & Acid Digest of Casein is used for the selective enrichment of enterohemorrhagic E. coli in foods in a laboratory setting. TSB Modified w/20 mg Novobiocin & Acid Digest of Casein is not intended for use in the diagnosis of disease or other conditions in humans.

The first major outbreak of E. coli O157:H7 was in 1982, and traced to contaminated hamburgers. Other known sources of infection include sprouts, lettuce, salami, unpasteurized milk, juice and/or swimming in or drinking contaminated water. TSB, Modified w/20 mg Novobiocin & Acid Digest of Casein is used to enrich food samples suspected of having low levels of EHEC during pathogen testing. This formulation conforms to the USDA/FSIS Microbiology Laboratory Guidebook.