MMR Vaccine (Measles, Mumps, and Rubella)

MMR refers to a combined vaccine against measles, mumps, and rubella. The vaccine was originally developed in the United States by Dr. Maurice Hilleman at Merck & Co. in the late 1960s and early 1970s. Since its inception, several global pharmaceutical manufacturers have developed their own versions of the MMR vaccine to meet international demand.

Today, the manufacturing of MMR vaccines takes place in various global hubs. Key producers include Merck & Co. (known as MSD outside the US and Canada) in the United States, GSK (GlaxoSmithKline) in Belgium, and the Serum Institute of India. Depending on the specific brand name—such as M-M-R II or Priorix—the country of origin and ultimate ownership vary between American and European multinational corporations.