Merck Animal Health Receives EU Approval of BOVILIS CRYPTIUM®

First EU-licensed vaccine proven to protect against Cryptosporidium parvum in calves from birth onwards

Rahway, N.J., Nov. 29, 2023 – Merck Animal Health, known as MSD Animal Health outside of the United States and Canada, a division of Merck & Co., Inc., Rahway, N.J., USA (NYSE:MRK), today announced that the European Commission has approved BOVILIS CRYPTIUM®, the first EU-licensed vaccine to protect cattle against Cryptosporidium parvum (C. parvum) infection. Following the centralized approval procedure, BOVILIS CRYPTIUM is now licensed in all European Union countries.

BOVILIS CRYPTIUM is indicated for the active immunization of pregnant cows to raise antibodies in colostrum against Gp40 of C. parvum.  BOVILIS CRYPTIUM is the first C. parvum maternal vaccine for cattle. C. parvum is a highly infectious zoonotic parasite that causes cryptosporidiosis, one of the most significant gastrointestinal diseases in cattle.

“Merck Animal Health is proud to offer BOVILIS CRYPTIUM, a new, science-driven way to combat the devastating parasite C. parvum, which impacts Europe and the rest of the world,” said Philippe Houffschmitt, DVM, MBA, associate vice president of the global ruminant business at Merck Animal Health. “This novel vaccine offers preventive neonatal protection, which can help preserve cattle well-being from the earliest days of life as well as help contribute to global food production and safety.”

Vaccinating pregnant heifers and cows can provide protection for calves at birth – when they are most vulnerable. The parasite plays a major role in the development of calf scour, the most common cause of death in young calvesi, and can have longer term effects on weight gain and production efficiency in severe cases.ii

Detailed conditions for the use of BOVILIS CRYPTIUM in cattle are described in the  Summary of Product Characteristics (SPC), available in all EU languages.

About Merck Animal Health

At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than a century, we’ve been at the forefront of research, bringing forward medicines, vaccines and innovative health solutions for the world’s most challenging diseases. Merck Animal Health, a division of Merck & Co., Inc., Rahway, N.J., USA, is the global animal health business of Merck. Through its commitment to The Science of Healthier Animals®, Merck Animal Health offers veterinarians, farmers, producers, pet owners and governments one of the widest ranges of veterinary pharmaceuticals, vaccines and health management solutions and services as well as an extensive suite of connected technology that includes identification, traceability and monitoring products. Merck Animal Health is dedicated to preserving and improving the health, well-being and performance of animals and the people who care for them. It invests extensively in dynamic and comprehensive R&D resources and a modern, global supply chain. Merck Animal Health is present in more than 50 countries, while its products are available in some 150 markets. For more information, visit and connect with us on LinkedIn, Facebook, Twitter and Instagram.

Forward-Looking Statement of Merck & Co., Inc., Rahway, N.J., USA

This news release of Merck & Co., Inc., Rahway, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline candidates that the candidates will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

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The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s Annual Report on Form 10-K for the year ended December 31, 2022 and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (

i Cho Y, Yoon, K. An overview of calf diarrhea – infectious etiology, diagnosis, and intervention. J Vet Sci. 2014 Mar;15(1):1-17.

ii Shaw HJ, Innes EA, Morrison LJ, et al. Long-term production effects of clinical cryptosporidiosis in neonatal calves. Int J Parasitol. 2020 May;50(5):371-376.