Porcine circovirus associated diseases (PCVADs) are economically important diseases of domestic pigs caused by
porcine circovirus type 2 (PCV2). PCV2 vaccination is usually performed with adjuvanted inactivated formulations
and is necessary to control PCVADs and subclinical PCV2 related body weight losses in pig farming. An important
issue with PCV2 vaccine formulation is that PCV2 antigenic media often have properties which destabilize vaccine
formulations. Vaccine adjuvants are a key parameter in modern vaccination closely linked to galenic properties of
vaccine formulations, and galenic stability is necessary to insure efficacy stability during vaccine shelf life. Here we
show that especially designed formulations based on MontanideTM ISA 11R VG (Oil in water) and MontanideTM
ESSAI Gel R (polymer) adjuvants are able to resist to very destabilizing antigenic media and conditions while
keeping safety parameters and efficacy at requested levels.