Results 21 to 30 of about 2,457 (145)

Rapid Identification of Bordetella pertussis Pertactin Gene Variants Using LightCycler Real-Time Polymerase Chain Reaction Combined with Melting Curve Analysis and Gel Electrophoresis

open access: yesEmerging Infectious Diseases, 2001
Recently, eight allelic variants of the pertactin gene (prn1-8) have been characterized in Bordetella pertussis strains isolated in Europe and the United States.
Johanna Mäkinen   +4 more
doaj   +2 more sources

Rapid Increase in Pertactin-deficient Bordetella pertussis Isolates, Australia [PDF]

open access: yesEmerging Infectious Diseases, 2014
Acellular vaccines against Bordetella pertussis were introduced in Australia in 1997. By 2000, these vaccines had replaced whole-cell vaccines. During 2008–2012, a large outbreak of pertussis occurred. During this period, 30% (96/320) of B.
Connie Lam   +13 more
doaj   +2 more sources

Prevalence and genetic characterization of pertactin-deficient Bordetella pertussis in Japan. [PDF]

open access: yesPLoS ONE, 2012
The adhesin pertactin (Prn) is one of the major virulence factors of Bordetella pertussis, the etiological agent of whooping cough. However, a significant prevalence of Prn-deficient (Prn(-)) B. pertussis was observed in Japan.
Nao Otsuka   +6 more
doaj   +2 more sources

Bordetella pertussis pertactin knock-out strains reveal immunomodulatory properties of this virulence factor [PDF]

open access: yesEmerging Microbes and Infections, 2018
Whooping cough, caused by Bordetella pertussis, has resurged and presents a global health burden worldwide. B. pertussis strains unable to produce the acellular pertussis vaccine component pertactin (Prn), have been emerging and in some countries ...
Elise Sofie Hovingh   +9 more
doaj   +3 more sources

Pertactin contributes to shedding and transmission of Bordetella bronchiseptica.

open access: yesPLoS Pathogens, 2021
Whooping cough is resurging in the United States despite high vaccine coverage. The rapid rise of Bordetella pertussis isolates lacking pertactin (PRN), a key vaccine antigen, has led to concerns about vaccine-driven evolution.
Longhuan Ma   +9 more
doaj   +2 more sources

Immunization with autotransporter Vag8 prevents coughing induced by Bordetella pertussis infection in mice

open access: yesMicrobiology and Immunology, Volume 67, Issue 6, Page 314-317, June 2023., 2023
Abstract Bordetella pertussis causes pertussis, which is characterized by paroxysmal coughing. This disease is generally prevented through vaccination; however, the number of pertussis cases is increasing worldwide despite high vaccination coverage. We previously reported that an autotransporter of B.
Koichiro Suzuki   +3 more
wiley   +1 more source

Modeling the effect of oxidative stress on Bordetella pertussis fermentations

open access: yesBiotechnology Progress, Volume 39, Issue 3, May/June 2023., 2023
Abstract A mathematical model is proposed for Bordetella pertussis with the main goal to better understand and describe the relation between cell growth, oxidative stress and NADPH levels under different oxidative conditions. The model is validated with flask experiments conducted under different conditions of oxidative stress induced by high initial ...
Michael Vitelli   +3 more
wiley   +1 more source

Safety and Immunogenicity of Pertussis Vaccine Immunization during Pregnancy: A Meta‐Analysis of Randomized Clinical Trials

open access: yesJournal of Tropical Medicine, Volume 2022, Issue 1, 2022., 2022
The objective of this meta‐analysis is to assess the safety and immunogenicity of maternal pertussis vaccination based on randomized clinical trials. PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Internet, and Wan Fang Database were searched from inception up to the 8th of October 2021, using a protocol registered on ...
Aidibai Simayi   +3 more
wiley   +1 more source

Development of an In Vitro Test Method to Replace an Animal-Based Potency Test for Pertactin Antigen in Multivalent Vaccines

open access: yesVaccines, 2023
There is increasing interest to replace animal-based potency assays used routinely to test vaccines, since they are highly variable, are costly, and present ethical concerns. The development of relevant in vitro assays is part of the solution.
Jason Szeto   +17 more
doaj   +1 more source

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