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.
- If you have an unvaccinated dog older than four or five months, he will need a series of two vaccinations given two to three weeks apart, followed by a yearly vaccination. - Puppy vaccination and socialization should go together. If you have an unvaccinated dog older than four or five months, he will need a series of two vaccinations given two to three weeks apart, followed by a yearly vaccination. - Puppy vaccination and socialization should go together.