Location of the Three Major Agglutinogens of Bordetella Pertussis by Immuno-Electronmicroscopy Preston, N. W. and Zorgani, A. A. and Carter, E. J.,, 32, 63-68 (1990), doi = https://doi.org/10.1099/00222615-32-1-63, publicationName = Microbiology Society, issn = 0022-2615, abstract= Summary When the three serotypes of Bordetella pertussis (types 1,2,3; 1,2 and 1,3) were labelled with agglutinins and protein-A gold, agglutinogen 1 was found on fimbriae and on the cell surface of types 1,2,3 and 1,2 but on the cell surface only of non-fimbriate type 1,3 organisms. In contrast, agglutinogen 2 was located on fimbriae only. Agglutinogen 3 was not labelled. When protein-A gold was replaced by immunoglobulin-G gold, agglutinogen 3 was found on the cell surface only, even of fimbriate bacteria of type 1,2,3. The implications of these findings for acellular vaccines are discussed., language=, type=