Oscar is now 12, he is on Urilin, Previcox and Vetmedin and is now due for his annual booster. I am, however, unsure about whether to go ahead and have it done. I have discussed it with my vet, and he feels Oz doesnt need it. He said by his age he should have a good level of immunity, and in his 30 odd years of working in this area, he has only seen a few cases of parvo, and nothing else that we vaccinate against (bar KC of course). Also that it may overload Oscar's immune system. I know its ultimately my choice, but i cant help but be a little paranoid about not having it done. If something is going to happen, or some disease to be caught, it will be Oscar that gets it. He's already had a rare fungal infection in his feet that got a load of lab geeks excited. He doesnt mix much with other dogs. We walk on private land where only 4 other dogs go, all of which are vaccinated. He spends a lot of time in water, but my vet said they have never seen a confirmed case of lepto. One day im swaying one way, the other the next.