Pertactin-Deficient Bordetella pertussis with Unusual Mechanism of Pertactin Disruption, Spain, 1986–2018 [PDF]
Bordetella pertussis not expressing pertactin has increased in countries using acellular pertussis vaccines (ACV). The deficiency is mostly caused by pertactin gene disruption by IS481.
Alba Mir-Cros +19 more
doaj +2 more sources
Pertactin deficiency of Bordetella pertussis: Insights into epidemiology, and perspectives on surveillance and public health impact [PDF]
Pertussis resurgence has been documented even in countries with high pediatric vaccine coverage. The proportion of Bordetella pertussis isolates not expressing pertactin (PRN) has increased in several countries where acellular pertussis (aP) vaccines are
Ulrich Heininger +7 more
doaj +3 more sources
Rare Detection of Bordetella pertussis Pertactin-Deficient Strains in Argentina [PDF]
Pertussis resurgence had been attributed to waning vaccine immunity and Bordetella pertussis adaptation to escape vaccine-induced immunity. Circulating bacteria differ genotypically from strains used in production of pertussis vaccine.
Francisco Carriquiriborde +6 more
doaj +2 more sources
Bordetella pertussis Strain Lacking Pertactin and Pertussis Toxin
A Bordetella pertussis strain lacking 2 acellular vaccine immunogens, pertussis toxin and pertactin, was isolated from an unvaccinated infant in New York State in 2013.
Margaret M. Williams +6 more
doaj +2 more sources
Naturally circulating pertactin-deficient Bordetella pertussis strains induce distinct gene expression and inflammatory signatures in human dendritic cells [PDF]
Respiratory infections caused by Bordetella pertussis are reemerging despite high pertussis vaccination coverage. Since the introduction of the acellular pertussis vaccine in the late twentieth century, circulating B.
Michiel M. Kroes +11 more
doaj +3 more sources
Pertactin-Negative and Filamentous Hemagglutinin-Negative Bordetella pertussis, Australia, 2013–2017 [PDF]
During the 2008–2012 pertussis epidemic in Australia, pertactin (Prn)–negative Bordetella pertussis emerged. We analyzed 78 isolates from the 2013–2017 epidemic and documented continued expansion of Prn-negative ptxP3 B. pertussis strains.
Zheng Xu +9 more
doaj +4 more sources
SphB1 export system for antigen presentation to the respiratory tract by a live pertussis vaccine [PDF]
BPZE1 is a live attenuated vaccine currently in advanced clinical development for nasal immunization against pertussis. The ability of this vaccine to induce mucosal and systemic, humoral and cellular immunity make it an attractive mucosal delivery ...
Lazara Elena Santiesteban-Lores +7 more
doaj +2 more sources
Virulence of Pertactin-Negative Bordetella pertussis Isolates from Infants, France
Bordetella pertussis isolates that do not express pertactin (PRN) are increasing in regions where acellular pertussis vaccines have been used for >7 years. We analyzed data from France and compared clinical symptoms among infants
Hélène Bodilis, Nicole Guiso
doaj +2 more sources
In vivo RNA-seq and infection model reveal the different infection and immune characteristics of B. pertussis strains in China [PDF]
IntroductionVarious strains emerged in B. pertussis re-emergence, the pathogenic characteristics and mechanisms remain elusive. We aimed to explore the relationship between the in vivo transcriptome and colonization advantage of various pertussis ...
Weilun Zuo +14 more
doaj +2 more sources
Pathogenicity and vaccine protection of circulating pertactin- and filamentous hemagglutinin-deficient Bordetella pertussis strains [PDF]
The increasing emergence of vaccine antigen-deficient Bordetella pertussis (Bp) variants has raised concerns regarding disease control and prevention. Here, we characterized the pathogenicity and vaccine protection of circulating pertactin-deficient (PRN−
Hanying Dai +16 more
doaj +2 more sources

