US companies that sell rabies vaccines routinely recommend that they be given annually. Obviously, these companies have a financial incentive to recommend that their vaccines be given as frequently as possible.

No human vaccine that I know of requires annual booster shots. The standard recommendation to veterinarians that they receive a single primary course of vaccinations and no boosters at all. It seems inconsistent that the CDC recommends that vets that work with sick animals on a daily basis get a one-time vaccination, but the USDA "recommends" house pets get vaccinations every year. My understanding is that this USDA "recommendation" is based on no scientific evidence whatsoever.

Is there any scientific evidence indicating the effectiveness of vaccines as a function of the frequency of their application?

  • $\begingroup$ Not going to research an answer, but canine rabies - and dogs as vectors in human rabies cases - has been eliminated in the US in my lifetime. Coincidence? Conspiracy? I can guess... $\endgroup$ – anongoodnurse Jan 14 '17 at 4:38
  • $\begingroup$ UK veterinarians get a boaster every 3-5 years. $\endgroup$ – JayCkat Jan 14 '17 at 4:43
  • $\begingroup$ Where I live, it's every 3 years for dogs. $\endgroup$ – jamesqf Jan 14 '17 at 19:42
  • $\begingroup$ @jamesqf That is only because your vet is not using Pfizer vaccines. $\endgroup$ – Imprisoned Rhesus Jan 14 '17 at 20:38
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    $\begingroup$ @Imprisoned Rhesus: But the fact that there are 3 year rabies vaccines, and that 3 years is the interval recommended by vet schools (e.g. vetmed.ucdavis.edu/vmth/small_animal/internal_medicine/… ) disproves the (implied by wording) claim that ALL US companies try to push 1 year rabies vaccines. $\endgroup$ – jamesqf Jan 15 '17 at 5:25

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