SeraCare Life Sciences, Milford, Mass, has introduced seven new AccuSpan molecular linearity panels for the detection of adenovirus, BK virus, Epstein-Barr virus, herpes simplex virus 1, herpes simplex virus 2, JC virus, and varicella zoster virus. Designed to help assay developers challenge their transplant assays from extraction phase through amplification, the panels can ensure assays are validated and running properly. Each panel consists of four samples, including one negative, one low positive, one medium positive, and one high positive. The panels are provided in a ready-to-go, single-use format with target concentrations that cover the dynamic range of most molecular assays and are consistent within each lot and across batches. The AccuSpan linearity panels are suitable for critical viral monitoring and laboratory quality control. For more information, visit SeraCare Life Sciences.