Best. News. Ever Cooper finally passed!!! We switched from Nobivac to the Rabisin vaccine and he reported a level of 2.62 after failing to reach 0.50 with 3 nobivac vaccines. I’m not saying the choice of vaccine is to blame, but if your dog has other risk factors that may lead to low titre levels (over 5yrs of age for first rabies vaccination, large dog, pure breed), then i would have a serious discussion with your vet about the brand of vaccine they use as there is evidence that Rabisin has a higher initial success rate and also higher titre levels. If only i’d know that back in Dec when this all started...