This is for everyone who vaccinates yearly

The AVMA (American Veterinary Medical Association) itself published an article recommending dogs and cats be vaccinated every 3 years. It has been proven that vaccines rabies, parvo... last for 3+ years.

However, there are vets against this, because a large portion of their income is from vaccinating dogs and cats. But, you still should bring your dog for a check-up every year.

sources:
http://www.findarticles.com/p/articl...5/ai_100046377
http://www.prevention.com/article/0,...44-1-P,00.html