Animal Health

Animal Health

Our global Animal Health business is dedicated to preserving and improving the health, well-being and performance of animals through science.



We offer veterinarians, farmers, pet owners and governments the widest range of veterinary pharmaceuticals, parasiticides, vaccines and health management solutions. Healthier animals mean sustainable food supplies, protection against zoonotic diseases,1 a reduction in the burden of certain food-borne diseases, and longer, richer companionship for pet owners.

Our Animal Health business employs more than 7,000 people worldwide and is present in more than 50 countries.


  • Natural disasters defined the year 2017 for both humans and their pets. Hurricanes Harvey and Maria and the wildfires in California left many household pets, horses, ponies and donkeys stranded and displaced. Our Animal Health business jumped in to provide physical, medical and monetary support.
  • By 2017, our Animal Health’s Afya Program had donated more than 2 million rabies doses to partners including Afya Serengeti and Mission Rabies as part of a broader global initiative to eliminate canine-mediated human rabies by the year 2030
  • In June 2017, the largest canine influenza outbreak ever experienced shook 13 states in the U.S., from North Carolina to Texas. Our Animal Health business provided hands-on education and public relations support to veterinarians, veterinary nurses, pet professionals and pet parents, and organized the first Canine Flu Vaccination Day on June 20th.
  • We launched the Time to Vaccinate program in Europe, an initiative for cattle care focused on treatment and vaccination to prevent infectious disease
  • We acquired Vilsan Pharmaceuticals, enhancing our portfolio of animal health products in Turkey and adding a manufacturing facility
  • We acquired Prondil S.A. in Montevideo, Uruguay, greatly expanding our ability to develop and manufacture vaccines for livestock in Latin America and globally. We also acquired Vallée S.A., which added to the breadth of our product line in Brazil and the Latin America region.
  • We partnered with Laboratorios LETI for the distribution of LetiFend® to protect against canine Leishmaniasis, a harmful parasitic disease caused by the organisms Leishmania infantum (L. infantum) that can also be spread to humans. LetiFend® aids in the prevention of Leishmaniasis by bolstering the immune response in advance of infection with the parasite.
  • We acquired a new global manufacturing facility located in Krems an der Donau, Austria, to expand global vaccine manufacturing and distribution. Krems is located near several universities and will be a leading site for innovation.
  • We launched INNOVAX®-ND-IBD, providing simultaneous protection against Newcastle Disease (ND), Infectious Bursal Disease (IBD), and Marek’s disease (MD). The vaccine is groundbreaking in Europe, where there are no current treatment options for these three damaging diseases. As a single- injection vaccine, INNOVAX-ND-IBD will also help to decrease stress due to vaccination in chicks and improve poultry welfare.
  • We launched EXZOLT®, the first systemic treatment for poultry red mite infestations. EXZOLT is easily administered via poultry’s drinking water, decreasing the potential for stress from infestations and the need for chemical treatments and sprays.

Our Animal Health business employs more than 7,000 people worldwide and is present in more than 50 countries. We operate a global network of manufacturing sites and dedicated R&D facilities, and offer products for various species, including ruminants (cattle, sheep, goats), poultry, swine, aquatic animals and companion animals (dogs, cats, horses) in 150 countries. Our Animal Health business concentrates our corporate responsibility efforts in the following areas:

Note: This section includes information about how Merck & Co., Inc., Kenilworth, N.J., U.S.A., contributes to societies through its Animal Health business. Information and data on the performance of our Animal Health business in the environment and in other areas are contained within the main sections of our global corporate responsibility report.
1. Zoonotic diseases are any disease or infection that is naturally transmissible from vertebrate animals to humans or vice versa (World Health Organization). Food-borne diseases in general encompass a wide spectrum of illnesses caused by microbial, parasitic or chemical contamination of food.


ANIMAL HEALTH2013 2014 2015 2016 2017
Year-over-year increase in rabies vaccine donations1 +70% +15% +47% +34% +20%
Value of equine vaccines donated annually to the Unwanted Horse Veterinary Relief Campaign $125,000 $115,000 $107,000 $142,400 $182,420
Number of new products approved (annually) 5 8 10 9 18
Scholarships provided to students through our Animal Health Grant ProgramNR 38 52 100 190
NR: Not reported.
1. Rabies doses donated to Afya rabies projects (including Mission Rabies and the Serengeti Health Initiative).