Merck & Co., Inc., incorporated in 1970, is a global healthcare company. The Company offers health solutions through its prescription medicines, vaccines, biological therapies, and animal health products, which it markets directly and through its joint ventures. The Company's Pharmaceutical segment includes human health pharmaceutical and vaccine products marketed either directly by the Company or through joint ventures. The Company has operations in Pharmaceutical, Animal Health, Alliances, and Healthcare Services segments. Their human health pharmaceutical products consist of therapeutic and preventive agents, generally sold by prescription, for the treatment of human disorders.