From Middle English, from Old English efen, efn, emn â(â even, equal, like, level, just, impartial, true â), from Proto-Germanic *ebnaz â(â flat, level, even; equal, straight â), from Proto-Indo-European *(hâ)emno- â(â equal, straight; flat, level, even â).
1 Puppies can receive the injectable vaccine starting at 6 to 8 weeks of age, followed by a booster between 10 and 12 weeks of age. 2  For adult dogs or puppies older than 16 weeks, the intranasal vaccine can be given once, and the injectable vaccine should be given twice, two to four weeks apart. Kittens can be vaccinated intranasally as early as 8 weeks of age. 2  Puppies can receive the injectable vaccine starting at 6 to 8 weeks of age, followed by a booster between 10 and 12 weeks of age.
A second vaccination is recommended after 1 year, then boosters every 3 years. Core dog vaccine. Distemper. At least 3 doses, given between 6 and 16 weeks of age. 2 doses, given 3-4 weeks apart. Puppies need a booster 1 year after completing their initial series, then all dogs need a booster every 3 years or more often. Core dog vaccine. Caused by an airborne virus, distemper is a severe disease that, among other problems, may cause permanent brain damage.