Sanofi engages in the research, production and distribution of pharmaceutical products. It operates through the following business segments: Pharmaceuticals, Human Vaccines, and Animal Health. The Pharmaceuticals segment includes research, development, production and sales activities relating to pharmaceutical products, including prescription, consumer health care, and generic products. This segment also includes equity affiliates and joint ventures with pharmaceutical business activities. The Human Vaccines segment includes research, development, production and marketing of vaccines. The Animal Health segment comprises the research, development, production and marketing activities for Merial, which offers a range of medicines and vaccines for animal species. The company was founded on April 28, 1994 and is headquartered in Paris, France.