How many times a year should your horse have their injections?

The number of diseases that horses need to be vaccinated against yearly depends on horse age, use, location (country, state, county, etc) and previous health history. Some vaccines are also recommended 2-4 times a year based upon risk factors for the disease being vaccinated against and the brand of vaccine used. For example, horses in the US are commonly vaccinated against 5-8 different diseases and some of those vaccinations are recommended to be boostered 2, 3 or 4 times while others are only administered yearly. In the UK, horses are commonly vaccinated for fewer diseases due to lack of risk of contracting some of the diseases prevalent in the US,

It is important for horse owner to contact their veterinarian to develop a vaccination plan that is appropriate for their location/situation/horse.