Zoetis Inc. is engaged in the discovery, development, manufacture, and commercialization of animal health medicines and vaccines for livestock and companion animals worldwide. It operates through four segments: United States, Europe/Africa/Middle East, Canada/Latin America, and Asia/Pacific. The company offers anti-infectives that prevent, kill, or slow the growth of bacteria, fungi, or protozoa; vaccines that are biological preparations to prevent diseases of the respiratory, gastrointestinal, and reproductive tracts or induce a specific immune response; and parasiticides that prevent or eliminate external and internal parasites, such as fleas, ticks, and worms. It also provides medicated feed additives that offer medicines to livestock; and other pharmaceutical products, including pain and sedation, oncology, antiemetic, allergy, and dermatology products, as well as reproductive products. The company markets its products to veterinarians and livestock producers through its sales representatives, and technical and veterinary operations specialists. Zoetis Inc. was founded in 1952 and is headquartered in Florham Park, New Jersey.