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J Bacteriol. 1969 July; 99(1): 57-64
Copyright © 1969 American Society for Microbiology. All Rights Reserved.

Histamine-sensitizing Factor, Mouse-protective Antigens, and Other Antigens of Some Members of the Genus Bordetella

^a National Institute of Allergy and Infectious Diseases, Rocky Mountain Laboratory, Hamilton, Montana 59840

ABSTRACT

The three species of the genus Bordetella—B. pertussis, B. parapertussis, and B. bronchiseptica—have many antigens in common. Studies on representative strains of these species have shown that there are only a few specific antigens in each species. Whole-cell vaccines and extracts from B. pertussis contained specific mouse-protective antigen and a histamine-sensitizing factor. In addition, whole-cell vaccines and some saline extracts protected mice against intracranial challenge with B. bronchiseptica. Cells and a saline extract of B. parapertussis also protected against B. bronchiseptica but not against B. pertussis. Whole cells of B. bronchiseptica protected against B. bronchiseptica, but only one of three saline extracts protected against this challenge. Neither whole cells nor saline extracts from B. bronchiseptica protected against B. pertussis. The antigen in B. pertussis responsible for cross-protection against B. bronchiseptica was less resistant to heat than the protective antigen in B. bronchiseptica. Since histamine-sensitizing factor was not detected in B. bronchiseptica or B. parapertussis cells or extracts, this factor is not required to protect mice against B. bronchiseptica challenge. Whether B. pertussis vaccines protected against B. bronchiseptica by a nonspecific mechanism was not established, but it is clear that the specific antigen responsible for protection against B. pertussis was found only in B. pertussis and not in B. bronchiseptica or B. parapertussis.

¹ National Institute of Health Postdoctoral Fellow. Present address: Veterinary Medical Research Institute, Iowa State University, Ames, Iowa 50010.

² Present address: P. O. Onderstepoort, Republic of South Africa.