Our vet still does the one-jab booster, but the ma-in-law's does the two-jab at twice the price (naturally!). Mind you, her vet does plan on closing early when she walks in, if you follow me ?
Maybe your vet has had an epiphany and decided Novibac is the best treatment for ALL his patients, and they'll ALL need two jabs to get started ? (Ker-ching !!)
Our dogs haven't had a booster since they were 2 years old, and I've no plans on getting any done...........