The Department of Health and Human Services, specifically the Centers for Disease Control and Prevention (CDC), intends to award a sole source contract for the procurement of a Zeiss Axioscope 5 microscope system, which includes advanced fluorescence and darkfield imaging capabilities. This specialized equipment is critical for ongoing research related to HIV and sexually transmitted infections, as it offers superior imaging capabilities essential for high-quality live cell imaging and quantitative analysis, surpassing alternative products. Interested parties may submit capability statements or proposals for consideration, with all responses due by the specified deadline; inquiries can be directed to Jillian Martinez at uhs0@cdc.gov or Stephanie Reid at qsi5@cdc.gov.