MSP (US-based) and MCM Vaccine B.V. (in Europe) are a partnership between Sanofi Pasteur Inc. and Merck & Co., Inc., Kenilworth, NJ, USA (known as MSD outside US and Canada).

Logo MSD                              Logo Sanofi


MCM was established in 1991 to enable MSD and Sanofi Pasteur to co-develop pediatric vaccines that can combine and deploy the proven antigens developed by each company.

MSD and Sanofi Pasteur are two of the world’s largest vaccine companies, both with long track records in vaccine and antigen development. They have collaborated for more than 25 years in the US and Europe, allowing them to pool their extensive experience in developing, manufacturing and marketing combination vaccines.       

MCM Vaccine is a European joint venture formed between Sanofi Pasteur  and Merck & Co., Inc. (known as MSD outside US and Canada). Combining innovation and expertise, MCM Vaccine develops pediatric vaccines.