We do govt vaccines. As far as I know, the biggest difference is that the private vaccine have more combo vaccines (ie 2 vaccines, 1 injection) whereas the govt ones are not. We do govt. Skye had 3 instead of 2 injections at the first visit. We only started at 12 weeks. I think govt ones suggest starting at 6 weeks, but you can start at 8 weeks if you want, we started late. Pvt ones suggest starting at 8 weeks.