Look it up on the net....loads of info regarding boosters. Mine are done 3yrly, and had them tested for immunity at the beginning of this year.
No offence intended and not directed at anyone, but it never fails to amaze me..... if people cannot afford the basic health care required for 4 dogs or any amount, then why do they have that many?
Plus, have you all forgotten Ginger French so soon?
MOLL.
you will have to ask them that, is it every 3 years that dogs have to be boosted as said as my vet makes me do it every year, is he conning me