The National Institute of Allergy and Infectious Diseases (NIAID) is seeking to award a sole source contract for the annual maintenance and service of two Cytek Aurora flow cytometry systems. The systems are used for high-dimensional immunophenotyping of lymphocytes isolated from peripheral blood and lymphoid tissues of participants in clinical research protocols. The contract will be awarded to Cytek Biosciences Inc., as they are the only qualified source to provide factory-certified service, maintenance, and parts for the equipment. The period of performance will be from April 28, 2026, to April 27, 2027. Some key points to consider: • The contract is for a firm-fixed price. • The total estimated dollar value of the requirement is $68,560. • The service contract is necessary to maintain the integrity of ongoing research and protect the investment of the laboratory in the instrument and research in progress. • The Cytek Aurora instrument is a sensitive, delicate, and highly complex instrument that requires priority service and maintenance to ensure its continued functionality. • The contract will provide a priority response for repairs, which is critically needed due to the heavy usage and critical nature of the samples.