Proficiency Testing/EQA / 2024 Surveys / Transfusion Medicine Viral Markers and Parentage Testing / Viral Markers Help Please log in to determine if you are eligible to purchase PT Programs. VECTOR-BORNE DISEASE - VBDM 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 Zika virus 3 Two shipments per year Program Information Three 1.5-mL liquid specimens Shipping Schedule Shipment A: May 20 Shipment B: December 2 Guest Log in/Register