Evidence ofBordetella pertussisInfection in Adults Presenting with Persistent Cough in a French Area with Very High Whole‐Cell Vaccine Coverage

Australia experienced a resurgence of pertussis in the 1990s despite improved vaccine coverage. Although much of the increase was attributable to increased detection of cases in older persons with waning immunity by serology, vaccine changes or alterations in circulating Bordetella pertussis strains may also have contributed. We determined the frequency of variants of B. pertussis pertactin (prn), and pertussis toxin subunit 1 (ptxS1) genes, restriction fragment length polymorphism (RFLP) types and fimbrial serotypes prevalent in Australia prior to, and during the 1990s. Ampoules of the whole-cell vaccine in use prior to 1999 and 84 B. pertussis isolates stored between 1967 and 1998 by laboratories around Australia were analysed. One pertactin allele, Prn3, not detected before 1985, was found in 24 out of 57 (42%) isolates between 1989 and 1998 (P<0·0001). PtxS1A was found in all isolates. IS1002 type 29, found in 17 out of 31 (55%) isolates tested, was the predominant RFLP type. The only difference in fimbrial serotype distribution between the time-periods was an increase in serotype 3 (P=0·054). The whole-cell vaccine contained only the alleles prn1 and ptxS1A. Antigenic shift in B. pertussis may have contributed to the re-emergence of pertussis in Australia. Monitoring these trends will be important as acellular vaccines are introduced and changes are made to pertussis vaccine schedules.

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Whole Cell Vaccine

10.32388/qojyc0 ◽

2020 ◽

Author(s):

Keyword(s):

Cell Vaccine ◽

Whole Cell ◽

Whole Cell Vaccine

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Faculty Opinions recommendation of A Phase 1 Randomized, Placebo-controlled, Observer-blinded Trial to Evaluate the Safety and Immunogenicity of Inactivated Streptococcus pneumoniae Whole-cell Vaccine in Adults.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.737155235.793573973 ◽

2020 ◽

Author(s):

Charles Feldman

Keyword(s):

Streptococcus Pneumoniae ◽

Phase 1 ◽

Cell Vaccine ◽

Whole Cell ◽

Whole Cell Vaccine ◽

Blinded Trial

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Bordetella pertussis outer membrane vesicle vaccine confers equal efficacy in mice with milder inflammatory responses compared to a whole-cell vaccine

Scientific Reports ◽

10.1038/srep38240 ◽

2016 ◽

Vol 6 (1) ◽

Cited By ~ 23

Author(s):

René H. M. Raeven ◽

Jolanda Brummelman ◽

Jeroen L. A. Pennings ◽

Larissa van der Maas ◽

Wichard Tilstra ◽

...

Keyword(s):

Outer Membrane ◽

Bordetella Pertussis ◽

Inflammatory Responses ◽

Membrane Vesicle ◽

Cell Vaccine ◽

Outer Membrane Vesicle ◽

Whole Cell ◽

Whole Cell Vaccine ◽

Equal Efficacy

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Primary Immunization of Infants With an Acellular Pertussis Vaccine in a Double-Blind Randomized Clinical Trial

PEDIATRICS ◽

10.1542/peds.82.3.293 ◽

1988 ◽

Vol 82 (3) ◽

pp. 293-299

Author(s):

Margareta Blennow ◽

Marta Granström ◽

Eva Jäätmaa ◽

Patrick Olin

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

Pertussis Vaccine ◽

Acellular Pertussis Vaccine ◽

Cell Vaccine ◽

Primary Immunization ◽

Double Blind ◽

Whole Cell ◽

Whole Cell Vaccine ◽

Acellular Vaccine

The rate of adverse reactions and the immunogenicity of a two-component acellular pertussis vaccine as compared with a plain whole-cell vaccine and a placebo were evaluated for primary immunization in 319 6-month-old infants in a double-blind randomized clinical trial. The acellular vaccine produced few and mild systemic and local reactions. Fever (≥38°C) occurred in 6% to 8% of acellular vaccinees as opposed to 25% to 37% of whole-cell vaccinees. Redness (≥1 cm) appeared in 2% to 13% of the acellular vaccine and 24% to 32% of the whole-cell vaccine recipients. Antibody response to pertussis toxin measured in a neutralization test was obtained in 97% to 100% of the infants receiving either two or three doses of the acellular vaccine as compared to 59% after three doses of whole-cell vaccine.

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PERTUSSIS INCIDENCE AND THE EFFECT OF REVACCINATION OF PRESCHOOL AND SCHOOL CHILDREN

Russian Journal of Infection and Immunity ◽

10.15789/2220-7619-2018-3-284-294 ◽

2018 ◽

Vol 8 (3) ◽

pp. 284-294 ◽

Cited By ~ 1

Author(s):

А. M. Kostinov ◽

M. P. Kostinov

Keyword(s):

Favorable Effect ◽

Cell Vaccine ◽

School Age ◽

Pertussis Infection ◽

Whole Cell ◽

Number Of Factors ◽

Foreign Countries ◽

Incidence And Mortality ◽

Whole Cell Vaccine ◽

Cytomegalovirus Infections

The review is devoted to the analysis of pertussis incidence of children in the age group of 5–7, as well as strategies of DTP immunization with the help of the drugs in foreign countries. Mass vaccination against pertussis began in the middle of the 20th century, which contributed to a reduction in incidence and mortality rate from this infection. However, in the last decade, there has been an opposite tendency of increasing incidence of patients among children under school age, school age and adults. Atypical forms of the disease and complications due to ARVI, respiratory mycoplasmosis and cytomegalovirus infections are described in the review. Various strategies for the use of whole-cell and acellular pertussis vaccines as part of DTP drugs are described, as well as the epidemiological effect of introducing an additional booster dose of vaccine to children under school age. The expediency of revaccination of children aged 6–7 in Russia is argued, which can help to reduce the overall incidence of pertussis. The research materials related to the study of the properties of acellular anti-pertussis vaccine, such as immunogenicity and safety in comparison with whole-cell vaccine, are analyzed. The main drugs and their composition, which are used to vaccinate children against pertussis, are described in the review. It is assumed, that the increase in the incidence among children and teenagers, with the appearance of atypical forms of pertussis, is associated with a number of factors, such as the spread of new genotypes of Bordetella pertussis bacterium, emerged from mutations, as well as short duration of immunity after vaccination with acellular drugs, in comparison with whole-cell, and the use of more modern methods of detecting the pathogen. The mechanisms of the immune response due to different types of pertussis vaccines are also reviewed. It is concluded, that revaccination of children aged 6–7 with an additional fifth dose of an acellular vaccine against pertussis, as part of the DTaP instead of the Td drug, which is regulated in the National Calendar of preventive vaccinations, will have a favorable effect on the epidemic situation with pertussis infection in Russia.

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A Self-Assembling Whole-Cell Vaccine Antigen Presentation Platform

Journal of Bacteriology ◽

10.1128/jb.00752-17 ◽

2018 ◽

Vol 200 (15) ◽

Cited By ~ 1

Author(s):

Julie Liao ◽

Daniel R. Smith ◽

Jóhanna Brynjarsdóttir ◽

Paula I. Watnick

Keyword(s):

Vibrio Cholerae ◽

Bacterial Biofilm ◽

Cell Vaccine ◽

Secreted Protein ◽

Proof Of Concept ◽

Whole Cell ◽

Content Type ◽

Self Assembling ◽

Whole Cell Vaccine ◽

Common Infection

ABSTRACTDiarrhea is the most common infection in children under the age of 5 years worldwide. In spite of this, only a few vaccines to treat infectious diarrhea exist, and many of the available vaccines are sparingly and sporadically administered. Major obstacles to the development and widespread implementation of vaccination include the ease and cost of production, distribution, and delivery. Here we present a novel, customizable, and self-assembling vaccine platform that exploits theVibrio choleraebacterial biofilm matrix for antigen presentation. We use this technology to create a proof-of-concept, live-attenuated whole-cell vaccine that is boosted by spontaneous association of a secreted protein antigen with the cell surface. Sublingual administration of this live-attenuated vaccine to mice confers protection againstV. choleraechallenge and elicits the production of antigen-specific IgA in stool. The platform presented here enables the development of antigen-boosted vaccines that are simple to produce and deliver, addressing many of the obstacles to vaccination against diarrheal diseases. This may also serve as a paradigm for the development of broadly protective biofilm-based vaccines against other mucosal infections.IMPORTANCEDiarrheal disease is the most common infection afflicting children worldwide. In resource-poor settings, these infections are correlated with cognitive delay, stunted growth, and premature death. With the development of efficacious, affordable, and easily administered vaccines, such infections could be prevented. While a major focus of research on biofilms has been their elimination, here we harness the bacterial biofilm to create a customizable platform for cost-effective, whole-cell mucosal vaccines that self-incorporate secreted protein antigens. We use this platform to develop a sublingually administered live-attenuated prototype vaccine based onVibrio cholerae. This serves not only as a proof of concept for a multivalent vaccine against common bacterial enteric pathogens but also as a paradigm for vaccines utilizing other bacterial biofilms to target mucosal infections.

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