ATCC “Big Six” Non-O157 STEC Reference Standards
Verify your quality control assays for the “Big Six” non-O157 Shiga toxin-producing Escherichia coli serogroups classified as adulterants by the USDA. Choose high-quality ATCC cultures tested for Shiga toxin (stx1 and stx2) and intimin (eae) genes from E. coli serogroups O26, O45, O103, O111, O121, and O145.
ATCC provides “Big Six” strains in three easy formats:
Trust the leader in microbial reference standards, and order your “Big Six” quality control materials today.
We often speak generally of the global technical community, but ISO 17025 accreditation makes each accredited laboratory feel connected to the practical everyday operation of that community. With ever-growing science and technology, manufactured and agricultural materials, telecommunications, internet, cybersecurity, weapons, explosives, drugs, medicines and our homeland security operations, we need to have confidence that materials are sampled well and tested appropriately, and that measurement tools are well calibrated. The oversight and coordination of all calibration and testing are st ...