I have just booked our 8 week old puppy into vets for 2nd nobbi vac vaccinations at 10 weeks. Receptionist said we would need a third set, two weeks later and only after third set would he be safe to go down on the ground in public places. So not down till 12 weeks. She said this was a recent change but was very important to stick to this advice. Obviously we will, but I wondered if anyone else had heard this. Is going to make socialisation much harder. Maybe the two sets haven't been enough in terms of immunity.