Zoetis Inc was incorporated in Delaware in July 2012. It is engaged in the discovery, development, manufacture and commercialization of animal health medicines and vaccines, with a focus on both livestock and companion animals. It markets products across four regions: the United States, Europe/Africa/Middle East, Canada/Latin America and Asia/Pacific; eight core species: the livestock species of cattle, swine, poultry, sheep and fish, and the companion animal species of dogs, cats and horses; and five product categories: anti-infectives - products that prevent, kill or slow the growth of bacteria, fungi or protozoa; vaccines - biological preparations that help prevent diseases of the respiratory, gastrointestinal and reproductive tracts or induce a specific immune response; parasiticides - products that prevent or eliminate external and internal parasites such as fleas, ticks and worms; medicated feed additives; and other pharmaceutical products - pain and sedation, oncology, antiemetic, allergy and dermatology; and reproductive products. The Company organizes and operates its business in four segments: the United States, Europe/Africa/Middle East, Canada/Latin America and Asia/Pacific. The Company sells its livestock products directly to a diverse set of livestock producers, including beef and dairy farmers as well as pork, poultry and aquaculture operations, and to veterinarians, third-party veterinary distributors and retail outlets that typically then sell the products to livestock producers. It primarily sells its companion animal products to veterinarians or to third-party veterinary distributors that typically then sell its products to veterinarians, and in each case veterinarians then typically sell its products to pet owners. Its primary competitors include animal health medicines and vaccines companies such as Merck Animal Health, the animal health division of Merck & Co., Inc. (formerly known as Intervet/Schering-Plough); Merial, the animal health division of Sanofi S.A.; Elanco, the animal health division of Eli Lilly and Company; Bayer Animal Health, the animal health division of Bayer AG; Novartis Animal Health, the animal health division of Novartis AG; and Boehringer Ingelheim Animal Health, the animal health division of Boehringer Ingelheim GmbH. In addition, it competes with hundreds of other animal health product producers throughout the world.