title: Immunological Activity of Leptospira Pomona Bacterins.
abstract: Seven commercially available leptospiral bacterins were compared in guinea pigs and on that basis two of them, the best and the poorest, were further compared in calves. A wide variation was observed in their antigenicity and in their ability to provide protection. Guinea pigs appeared to be satisfactory test animals for evaluation of bacterins prepared for use in cattle.
authors.forename: A
authors.initials: A
authors.lastname: Robertson
authors.forename: P
authors.initials: P
authors.lastname: Boulanger