Week 10. Carry the puppy into the world. Sounds, surfaces, and calm adults.
Carry, do not walk
Public ground is off limits until the shots are done. Carry the puppy to see traffic, shops, and people.
Surfaces and sounds
Tile, grass, gravel, metal grates at home. The vacuum, the blender, doorbells, at low volume with treats.
Other dogs
Vaccinated adult dogs you know well, one at a time, on neutral ground.