CD&T how often?
I practice limited vacination on my dogs, i did alot of research and found most vets are seeing a 3 year minimum immunity in dogs with most vaccines...
I now titer test the dogs and havent had to revacinate yet...
BUT theres no info out there on the "lifespan" of CD&T in livestock...
Id hate to give it every year if it provides much longer term protection (ive seen the results of vaccinosis and its not pretty), i also know tetnus for humans is 10 years, but i also know tetnus is a horrible way to go.