PCT No. PCT / JP95 / 00830 Sec. 371 Date Oct. 13, 1995 Sec. 102(e) Date Oct. 13, 1995 PCT Filed Apr. 26, 1995 PCT Pub. No. WO95 / 29934 PCT Pub. Date Nov. 9, 1995To provide a method of efficiently separate protective components of 
Bordetella pertussis. On the basis of differences in adsorbability to 
calcium phosphate gel formed by adding 
calcium ions to a 
Bordetella pertussis culture in the presence of excess 
phosphate ions, protective components of 
Bordetella pertussis are separated from the 
Bordetella pertussis culture. Traditionally, protective components of 
Bordetella pertussis have been separated using different 
purification methods for the respective components. According to the present invention, the use of the same means of purification for all subject components makes it possible to purify each component with high efficiency and high 
recovery rate, an aspect very advantageous for industrial production. It is also possible to efficiently produce an improved purified pertussis component vaccine comprising an effective combination of pertussis filamentous 
hemagglutinin (FHA), pertactin (PRN, 69K-OMP), pertussis fimbriae (FIM) and 
pertussis toxin (PT).