Arkansas Veterinary Medical Association http://www.arkvetmed.org/new.html
RABIES VACCINATIONS
New Recommendations
Recommendations for maintaining adequate pre-exposure immunization status:
A routine booster every two years is NOT recommended since the newer cell culture vaccines often confer adequate antibody levels for 5 to 8 years and risk of adverse reactions is increased by frequent boosters. The standard pre-exposure recommendation for veterinarians practicing in an area with enzootic rabies is serologic testing every two years with booster vaccination when the antibody titer falls below the acceptable level, i.e. 1:5 by RFFIT.