It will vary from 6 to 16 weeks. One of the most important aspects is to understand why you must follow the guidelines for when it is safe to bring your Yorkie puppy out.
When a puppy is born, he has some protection against disease via antibodies received from the dam. However, these start to deplete a bit each day as he is maturing. In the meantime, the pup is receiving vaccinations, which start to build up.
There is a gray line that is there, in which the antibodies from the dam are low, but the new resistance via the puppy inoculations is not high enough to protect him.
The outside world can be dangerous to a puppy in regard to diseases that can be contracted from both other dogs and from other animals (including wildlife such as raccoon, deer, etc.). The main concerns are parvovirus, canine hepatitis and leptospirosis.
These diseases can be in contracted, most often, from a pup being on the ground where an animal had previously urinated or defecated (even if you do not see anything and the grass/ground looks just fine).
Because the risk varies depending on where the Yorkie would be (a fenced-in yard vs a public park) and the exact circumstances (holding your Yorkie up high or having him on the ground), it is important to follow the guidelines on when it is safe to go to certain outdoor areas.
Outside in your own yard, Zero chance of other dogs, animals
– If your yard is very secure from any other animals (past and present), such as a fenced area in which it is impossible for other animals (both pets and wildlife) to have access to, you can start bringing your Yorkie puppy outside at the 6 to 8-week mark.
If you are unsure, you may want to wait (see ahead) or place your pup into a portable canine playpen (supervised, of course) so that he is off the ground. More ahead on tips to make the yard safer.
Outside of the house, Yorkie pup will NOT be placed on the ground
- While canine distemper is both an airborne disease (sneezing, coughing) as well as contracted via contact with contaminated surfaces, most vets agree that if a puppy is held by his owner, in a canine stroller or up in a carry pack, it is safe to have him out in public this way starting at 8 weeks old. Never, for even a moment, place him on the ground, even if it looks clean.