Merck Sharp & Dohme LLC - known as Merck & Co. in the United States and Canada, and operating as MSD elsewhere - is a research-intensive biopharmaceutical company with more than 130 years of history in developing medicines and vaccines for both humans and animals. Its work spans drug discovery, clinical research, vaccine development, and therapeutics, with a pipeline described as one of the most diverse in the company's history.
MSD's technical domains cover a wide range of disciplines, including biopharmaceutical research, preventive medicine, public health, and R&D pipeline development. The company has a long record of scientific contribution: its development of streptomycin, an early antibiotic, is credited with helping reduce tuberculosis deaths by nearly 50% by 1950. Today, its research efforts address serious diseases in both people and animals across global markets.
Beyond human health, MSD operates a dedicated animal health division - MSD Animal Health - which develops veterinary solutions aimed at supporting companion animal care, protecting public health, and improving food safety and protein supply worldwide. This positions the company across several intersecting fields: biopharmaceuticals, vaccines, veterinary medicine, and food systems.
The company operates globally, with a stated philosophy that medicine exists to serve people rather than generate profit, and a scientific approach centred on directing research toward areas of greatest unmet medical need.






