The Equi-Jec 6 Vaccine is for healthy horses 4 months or older for the following: As an aid in the prevention of disease caused by eastern, western, and venezuelan encephalomyelitis tetanusAs an aid in the reduction of respiratory disease caused by equine influenza virus, Florida sublineage clade 1, equine herpesvirus type 1 & 4As an aid in the reduction of severity of clinical disease and as an aid in the viremia and mortality caused by west nile virus | Boehringer Ingelheim Equi-Jec 6 Vaccine | Size One Dose