Please note: This is a Sole Source Notification. Specifications include, but are not limited to: The State of Missouri Department of Health and Senior Services (DHSS), State Public Health Laboratory (SPHL) desires to acquire Immunoassay reagents, test kits, consumables, and preventative maintenance for the Liaison XL instrument owned by DHSS and purchased from DiaSorin, Inc. DiaSorin, Inc. is the sole manufacturer and provider of the Immunoassay products that are used with the Liaison XL instrument. Furthermore, DiaSorin, Inc. products are proprietary and Diasoring, Inc. is the sole service provider of the Liaison XL Instrument. According to RSMo 34.044, a single feasible source can be utilized when the product/service requirement is proprietary and only available from a single provider. As a result, this represents proprietary requirements that meet the criteria as a single feasible source under RSMo 34.044 and the State is pursuing this acquisition as a Single Feasible Source.