Another embodiment of the invention provides a method of generating {HEAD ~ an immune response} in {TAIL ~ an animal comprising} administering one or more purified polypeptides having at least 95% identity to SEQ ID NOs:22 33 or a combination thereof to the animal, wherein the one or more purified polypeptides generate an immune response in the animal 
Another embodiment of the invention provides a method of generating { HEAD ~ an immune response } in { TAIL ~ an animal comprising } administering one or more purified polypeptides having at least 95 % identity to SEQ ID NOs:22 33 or a combination thereof to the animal , wherein the one or more purified polypeptides generate an immune response in the animal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH