The provided text is an excerpt from the Wikipedia page for Danaher Corporation, an American healthcare company. It offers a detailed look into the company's structure, history, and operations, including its founding by the Rales brothers and its headquarters in Washington, D.C. The article outlines Danaher's focus on life sciences and diagnostics, detailing its three main divisions and showcasing its significant revenue and assets as an S&P 100 and 500 component. Furthermore, the source extensively documents the company's history of major acquisitions and divestitures throughout the decades, such as the spin-off of Fortive and the acquisition of Aldevron. Finally, the text addresses recent controversies surrounding the pricing of test cartridges manufactured by its subsidiary, Cepheid, and the resulting price reduction following public pressure.