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Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).

Analyte Challenges per Shipment Number of Shipments
Live organisms 3 Two shipments per year

The Laboratory Preparedness Exercise (LPX) was developed as a collaborative effort between the College of American Pathologists, the Centers for Disease Control and Prevention (CDC), and the Association of Public Health Laboratories (APHL). Laboratories will be sent live organisms that either exhibit characteristics of bioterrorism agents or demonstrate epidemiologic importance and will be expected to respond following Laboratory Response Network Sentinel Laboratory Guidelines if a bioterrorism agent is suspected. All agents provided are excluded from the CDC’s select agent list. These may include strains of Bacillus anthracis, Yersinia pestis, Francisella tularensis, and Brucella abortus that have been modified and are safe for testing in a laboratory that contains a certified Class II Biological Safety Cabinet and is capable of handling Category A and B agents.

Program Information

  • Three swab specimens with diluents
  • Not available to international customers due to United States export law restrictions

Shipping Schedule

  • Shipment A: April 5
  • Shipment B: September 7