Dr. Yen Pottinger is an infectious disease laboratory expert and public health specialist with over 15 years of experience both domestically and internationally. She currently serves as Senior Technical Advisor for Laboratory Surveillance at ICAP, Columbia University. She focuses on implementing HIV public health programs primarily in Africa, namely point-of-care recency testing in the CDC-funded Tracking with Recency Assays to Control the Epidemic (TRACE) Project. Previously, she was Senior Laboratory Advisor for the Population-based HIV Impact Assessment (PHIA) Project. She also works on improving HIV laboratory systems and diagnostic testing, collaborating with health ministries and other global and local partners in ICAP-supported countries. Throughout the COVID-19 pandemic, Dr. Pottinger has provided technical assistance and guidance to CDC and U.S. government entities, ministries of health, and other partners on SARS-CoV-2 diagnostic testing and safety protocols. She is also principal investigator for a CDC-funded project on antimicrobial resistance in Kenya. Over 8 years at CDC, Dr. Pottinger developed, validated, and implemented the limiting antigen avidity assay, which is now the most widely used assay globally for estimating and surveilling HIV incidence. Dr. Pottinger holds a Doctoral degree from the University of California, Davis in Pharmacology and Toxicology. She completed postdoctoral training as an ORISE fellow at CDC Atlanta.