How long after a 2nd puppy vaccination can they go out?

It's generally recommended that you wait until your puppy has immunity provided by their second set of vaccinations, before they mix with other dogs or play anywhere where other dogs might have been. If by ‘outside’ we’re talking about the outside world, it’s generally recommended that your puppy doesn’t do this until they have full protection from their second set of vaccinations. This will typically be two weeks after they’ve had those jabs, but you should always be guided by your vet. So, we’ve established that your new puppy won’t have the full protection they need until their second set of vaccinations have taken effect (about two weeks afterwards but check with your vet). The good news is though, in the meantime, there’s lots you can do to keep your puppy busy and active.