This invention provides the sequence of 5,299 nucleotides from the E.
canis genome. There are four proteins, ProA, ProB, MmpA, and a cytochrome
oxidase homolog, as well as a partial lipoprotein signal peptidase
homolog at the carboxy terminus, coded for in this cloned fragment. The
antigenic properties of these proteins allow them to be used to create a
vaccine. An embodiment of this invention includes the creation of a DNA
vaccine, a recombinant vaccine, and a T cell epitope vaccine. Another
embodiment of this invention includes the use of serological diagnosis
techniques.