CDC intends to award a sole source, firm-fixed-price purchase order to Emory University for procurement and delivery of biological specimens from persons receiving weekly oral lenacapavir. Emory was selected due to its established HIV clinical-research infrastructure, prior experience with CDC-supported studies, and proven capability in collecting, processing, and transferring biological specimens. The Atlanta-area performance location enables timely monthly specimen transport to the CDC DHP Laboratory Branch, reducing risks to specimen integrity. No budget amount is identified in the notice.