− | Puppies are usually first vaccinated between 6 to 8 weeks of age; a second vaccination is given 2 weeks later. Adult dogs need booster vaccination regularly (depending on the specific vaccination and the recommendations of the vaccine manufacturer). | + | Puppies are usually first vaccinated between 6 to 8 weeks of age; a second vaccination is given 3 weeks later. Adult dogs need booster vaccination regularly (depending on the specific vaccination and the recommendations of the vaccine manufacturer). |