Improved immunizing composition

摘要

The present invention is concerned with an antigenic composition comprising at least one antigen that comprises at least one antigenic epitope or antigenic determinant derived from a protein present in one or both of S. equi subsp. equi and subsp. zooepidemicus and use thereof for immunization of non-human mammals against S. equisubsp. equi and/or subsp. zooepidemicus.The present invention also discloses a vaccine composition comprising the aforesaid antigenic composition as immunizing component.