Bio-Rad Laboratories launches two new Exact Diagnostics products: Synthetic Negative Run Control, which complements the tick-borne, meningitis/encephalitis and sexually transmitted infections products; and HAI Negative Run Control, which complements the hospital-associated infections products. Both are external quality controls designed to be used with molecular assays to monitor intra- and inter-run performance. These products also may be used for dilution or spike-in purposes, such as assay validation and verification, and they enable laboratories to capture run-to-run, day-to-day, instrument-to-instrument, operator-to-operator, and lot-to-lot variations of molecular assays. The controls also can be utilized to train laboratory operators and evaluate proficiency.