Posted 12/18/2017 21:31 (#6438548 - in reply to #6438532) Subject: RE: Bovi-Shield Gold
Waupun, Wi
I use Bovi-shield Gold 5 and haven't been boostering. Label i believe recommends boostering at 1 year. They do get a dose of Inforce 3 21 days prior to the BVG-5.