Could your dog be allergic to the Rabies vaccine?

May 22, 2013 | Updated: 7:16 p.m., May 22, 2013

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NEW ORLEANS (WGNO) – All it takes is a clip from Stephen King’s Cujo to scare any owner into getting their pet a rabies vaccine!  Even if your dog isn’t quite so big or scary, the law requires your pup get its shot.  The problem?  Some dogs can have a reaction.

“There is kind-of a misplaced inflammatory reaction that results in a process that we call vasculitis.”  At Southeast Veterinary Clinic, Dr. Steve Lemarie is treating vasculitis in a Chihuahua named Gucci.  He says reactions to rabies vaccines are common in the breed.  Vasculitis causes inflammatory cells to target small blood vessels in the skin, which results in lesions on Gucci’s tail, ears and toes along with bruising on the skin.

Dr. Lemarie says, “We’re just collecting a little bit of the exudate from the lesion and we’re gonna stain it and take a look at it under the microscope and see if we can get a little bit better idea what’s going on.”  Dr. Lemarie uses fixative and stains that pick up different characteristics of different cell types.  He’s looking for neutrophils, which are common in vasculitis lesions.  He’ll likely give Gucci a corticosteroid and medication to increase blood flow.  Then, he’ll weigh the pros and cons of deciding what to do down the road.

“Sometimes we’ll write letters or document the process.  We don’t recommend that these guys have rabies vaccines in the future because certainly you don’t want to elicit the same type of reaction again.”  Gucci’s owners will also have to be extra cautious to ensure he doesn’t pick up the deadly viral disease.