title: Studies of a polymorphic Ehrlichia ruminantium gene for use as a component of a recombinant vaccine against heartwater.
authors.affiliation: ARC Onderstepoort Veterinary Institute, Private Bag X05, Onderstepoort 0110, South Africa. PretoriusAL@arc.agric.za
authors.forename: A
authors.initials: A
authors.lastname: Pretorius
authors.forename: J
authors.initials: J
authors.lastname: Liebenberg
authors.forename: E
authors.initials: E
authors.lastname: Louw
authors.forename: N E
authors.initials: NE
authors.lastname: Collins
authors.forename: B A
authors.initials: BA
authors.lastname: Allsopp