Download Validation of immunomagnetic beads for Top 7 Shiga toxin-producing Escherichia coli confirmation testing

In 2018, a validation study was commissioned to evaluate two different sources of immunomagnetic beads (IMS) used for the isolation of Top7 STEC from meat enrichments. Confirmation of Top7 STEC in screen positive enrichments is a requirement for export of raw beef trim product used for grinding to the US. Both IMS beads performed equally well; RapidChek® CONFIRM™ STEC IMS Kit and Dynabeads™ O157 beads were selected for use. This aligns NZ methods more closely with those used in the USA.