Zoetis is a holding company. Through its subsidiaries, Co. develops, manufactures and commercializes medicines, vaccines, diagnostic products and services, biodevices, genetic tests and animal health technology. Co.'s product categories include: vaccines, which are biological preparations that help prevent diseases of the respiratory, gastrointestinal and reproductive tracts or induce a specific immune response; and parasiticides, which are products that prevent or eliminate parasites. Co.'s other non-pharmaceutical product categories include nutritionals and agribusiness, as well as products and services in biodevices, genetic tests and precision animal health.