monitoring of bordetella isolates circulating in saint petersburg, russia between 2001 and 2009.bordetella isolates in the saint petersburg region have been monitored since 1998. over the past ten years, concomitant with the increase in pertussis whole-cell vaccine coverage, the incidence of whooping cough has decreased. however, this decrease exists only for bordetella pertussis infections, as the incidence of bordetella parapertussis confirmed cases has remained stable, suggesting that pertussis-vaccine-induced immunity is not protective against parapertussis, as expected. b. pertussis a ...201020870020
[molecular typing of the strains of bordetella pertussis circulating in st. petersburg during an outbreak of the disease].growth of the whooping-cough morbidity during the last years in russia and other countries with 40-year-long history of immunization gave rise to significant interest of researchers to variability of the bordetella pertussis population. comparative assay of the genomes of the b. pertussis strains circulating in st. petersburg in 1998-2000 and strains used to produce domestic vaccines akds was performed using the pulse-field electrophoresis and sequencing. it was found that most strains of b. per ...200617094652
comparison of the bordetella pertussis and bordetella parapertussis isolates circulating in saint petersburg between 1998 and 2000 with russian vaccine strains.we analyzed the bordetella pertussis and bordetella parapertussis isolates circulating in saint petersburg that were collected between 1998 and 2000 and compared them with isolates collected 40 years ago and russian vaccine strains. the analysis involved serotyping, pulsed-field gel electrophoresis of chromosomal dna after digestion with xbai and spei, and sequencing of the ptxs1 and prn genes, which encode the s1 subunit of the pertussis toxin and the major adhesin pertactin, respectively. the ...200312904379
[several results of serologic typing of pertussis cultures isolated in leningrad]. 19734377860
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