THE DEBATE IS OVER IT IS NOW WELL ESTABLISHED THAT AFTER 3 YEAARS DOGS NO LONGER NEED VACCINATIONS. wORMING IS QUIYE A DIFFERENT QUESTION YOU NEED TO BE EXTRA CAREFUL TO MAINTAIN REGILAR WORMING FOR ALL WORMS INCLUDING HEART WORM. sUPERMARKET PRODUCTS ARE QUITE ACCEPTABLE MAKE SURE THAT THE ALL WORMER YOU CHOOSE HAS HEARWORM AS WELL AS ALL THE OTHERS ALSO GIVE THE CORRECT DOSE FOR THE WEIGHT OF YOUR DOG. dENISE bREEDING SINCE 1965