Are annual vaccinations necessary for my 4-year-old Labrador?

Question

I understand pets must have vaccinations just like humans however, there is a such thing as over vaccination. How come I have to continuously get annual and semiannual shots for my now 4 year old Labrador? I understand the county mandate for a yearly rabies shot but these the other shots should have created immunity against diseases. Pet's info: Dog | Labrador Retriever | Male | unneutered | 4 years and 2 months old | 70 lbs

Lindsey Edwards MVB, BSc, IVCA · Accepted Answer

Vaccination is not an exact science and for some diseases in particular long term immunity is not generated and pets become at risk as immunity wanes. There is a fine balance between likelihood of exposure, severity of disease and anticipated length of immunity from vaccines. Some vaccines are licensed for use every 3 years, others have only been proven to be protective for 12 months . I recommend discussing local and individual risk factors with your own vet for a tailored plan

Are annual vaccinations necessary for my 4-year-old Labrador?

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