Population dynamics and antigenic drift of Bordetella pertussis following whole cell vaccine replacement, Barcelona, Spain, 1986-2015
Mir-Cros, Alba (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Moreno-Mingorance, Albert (Hospital Universitari Vall d'Hebron)
Martin-Gomez, M. Teresa (Departament de Genètica i de Microbiologia)
Codina, María Gema (Hospital Universitari Vall d'Hebron)
Cornejo-Sánchez, Thais (Hospital Universitari Vall d'Hebron)
Rajadell Guiu, Mireia (Departament de Genètica i de Microbiologia)
Van Esso, Diego (Institut Català de la Salut)
Rodrigo Gonzalo de Líria, Carlos (Hospital Universitari Vall d'Hebron)
Campins Martí, Magda (Hospital Universitari Vall d'Hebron)
Jané i Checa, Mireia (Servei Català de la Salut)
Pumarola Suñé, Tomàs (Hospital Universitari Vall d'Hebron)
Fàbrega-Santamaria, Anna (Universitat de Vic - Universitat Central de Catalunya)
González-López, Juanjo 1975- (Departament de Genètica i de Microbiologia)
Hospital Universitari Vall d'Hebron

Date:	2019
Abstract:	Among the factors associated with the resurgence of whooping cough, special emphasis has been given to pathogen adaptation after the introduction of the acellular vaccine (ACV). To assess the impact of the vaccine transition strategy from whole-cell vaccine (WCV) to ACV on population dynamics of Bordetella pertussis in Barcelona (Spain), we studied 339 isolates collected from 1986 to 2015 by PFGE and multi-locus variable-number tandem repeat analysis (MLVA). Additionally, allelic variants for the pertussis toxin and its promoter, pertactin, type 3 fimbriae and fimbrial serotyping were assessed to determine its antigenic drift. A shift was observed in the B. pertussis population as well as in its antigenic profile concurrently with the introduction of ACV in Barcelona. Four out of the five most prevalent PFGE profiles were replaced by new profiles following the ACV introduction. MLVA type 27 was the dominant genotype, and its frequency increased from 25% to 79. 3% after WCV replacement. Antigen typing demonstrated the emergence of prn2, ptxP3, fim3-2 and a shift from the fimbriae 3 to the fimbriae 2 serotypes after the ACV introduction. Our findings support the presence of population and antigenic dynamic changes in B. pertussis likely driven by the introduction of ACV.
Grants:	Ministerio de Economía y Competitividad RD16-0016-0003 Instituto de Salud Carlos III PI18-00703 Agència de Gestió d'Ajuts Universitaris i de Recerca 018FI_B_00855
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Whooping cough ; PFGE ; MLVA ; Antigenic variants ; Pertussis vaccine
Published in:	Emerging microbes & infections, Vol. 8 (november 2019) , p. 1711-1720, ISSN 2222-1751

DOI: 10.1080/22221751.2019.1694395
PMID: 31769735

10 p, 2.5 MB

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