The present invention provides a protein or a fragment or a variant of said protein, wherein the protein, fragment, or variant is capable of producing a protective immune response in an animal, wherein the immune response is protective against infection by Burkholderia species. Also provided is a method of preventing or treating infection in an animal caused by Burkholderia species which comprises administering an effective amount of the pharmaceutical composition of the present invention to the animal infected with Burkholderia species.
