Bordetella pertussis still poses an important health threat in developing countries. In Niger, notified pertussis cases are few despite the low diphtheria-tetanus-pertussis/pentavalent vaccine coverage. We aimed to estimate the prevalence of B. pertussis in children aged <5 years consulting at a pediatric ward. A 5-month study in 2011 recruited 342 children with respiratory symptoms at the Nati...

To identify the minimal structures that may be important for the creation of a synthetic and/or recombinant vaccine against whooping cough, human T cell clones were obtained against Bordetella antigens. Cloned peripheral blood T lymphocytes from an immune donor were grown in IL-2 and tested for proliferation in response to inactivated Bordetella species (B. pertussis, B. parapertussis, and B. b...

Bordetella pertussis and Bordetella bronchiseptica are respiratory pathogens of humans and animals respectively. Unlike many bacteria, they are able to efficiently colonise healthy ciliated respiratory mucosa. This characteristic of Bordetella spp. can potentially be exploited to develop efficient live vaccines and vectors for delivery of heterologous antigens to the respiratory tract. Here we ...

Despite the reduction in incidence after vaccination, pertussis disease is still considered a public health problem worldwide, mainly due to recent and potential new outbreaks. We report here the complete genome of the Bordetella pertussis Butantan strain used in the Brazilian National Immunization Program as a whole-cell pertussis antigen to compose vaccines such as DTwP (diphtheria, tetanus, ...

Considering the circulation of Bordetella pertussis clinical strains among populations with high vaccination coverage, it is necessary to have a proper understanding of this bacterium causing whooping cough. Various techniques, which are available for studying B. pertussis, can facilitate a proper comparison between different populations. We genotypically analyzed a collection of two vaccine st...

results bahaodowle razi, a persian physician from the 15th century anno domini (ad), reported two epidemics in harat and one in rey (inold persia) for the first time, one century before baillou. he named it as sorfe-ie-am (meaning public cough). those occurred during his lifetime. explaining about his observations and experiences about this epidemic, bahaodowle razi elaborated on prognosis, sym...

Pertussis or whooping cough is a highly contagious acute bacterial disease involving the respiratory tract, caused mainly by Bordetella pertussis and to a lesser extent by Bordetella parapertussis. Bordetella pertussis remains in fifth place in the list of deaths attributed to vaccine-preventable diseases in children under five years old around the world. It has been reported to cause significa...

whooping cough and diphtheria are vaccine preventable diseases. diphtheria, due to corynebacterium diphtheriae or corynebactium ulcerans, two gram positive bacteria, is a serious upper respiratory tract disease with high morbidity and mortality rates. vaccination, via an acellular vaccine composed only of purified, detoxified diphtheria toxin, has significantly reduced the incidence of the dise...

Serum Institute of India is among the world's largest vaccine producers. Here, we report the complete genome sequences for four Bordetella pertussis strains used by Serum Institute of India in the production of whole-cell pertussis vaccines.

Bordetella pertussis and Bordetella bronchiseptica rely on the global two-component regulatory system BvgAS to control expression of distinct phenotypic phases. In the Bvg(-) phase, expression of vrg genes, including those required for motility in B. bronchiseptica, is activated and genes encoding virulence factors are not expressed. Conversely, in the Bvg(+) phase, genes encoding virulence fac...