MacInnes, known as Puck, is a grinder â sailingâs equivalent of a football lineman. With their brawn, he and other grinders operate hand-powered winches that raise and trim the sails, move the boom and do other tasks that require brute strength. But MacInnes has fallen victim to legal maneuvering and technology.
A study of a cross section of puppies showed that at 6 weeks, only 25 percent of puppies vaccinated were effectively immunized. At 9 weeks, that increased to 40 percent. At 16 weeks, 60 percent responded to the vaccination, and at 18 weeks, that number increased to 95 percent.
Scheduling Shots. In the first three months of your puppy's life, your veterinarian will probably want to see your puppy every two or three weeks for vaccinations. Initial vaccinations for many diseases start at about six weeks and are repeated every two to three weeks until your puppy reaches 14 weeks of age. Booster Shots.