title: Comparison of the Bordetella pertussis and Bordetella parapertussis isolates circulating in Saint Petersburg between 1998 and 2000 with Russian vaccine strains.
abstract: 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 Russian isolates were classified in five of the six pulsed-field gel electrophoresis groups identified in other European countries. The B. pertussis isolates currently circulating in Saint Petersburg differed from the Russian whole-cell vaccine strains and the isolates collected in the prevaccine era. However, their repartition in the major pulsed-field gel electrophoresis groups was slightly different from that of isolates collected in countries that have had a high level of vaccine coverage for a long time, probably because the level of vaccine coverage in Saint Petersburg has increased only recently, after decreasing until the early 1990s. Most of the B. parapertussis isolates studied were similar to those circulating in France. However, some variants were observed, perhaps because B. parapertussis infections are more common in children in this area.
authors.affiliation: Bacterial Respiratory Infections Laboratory, Pasteur Institute of Epidemiology and Microbiology, 197101 Saint Petersburg, Russia.
authors.forename: Natacha
authors.initials: N
authors.lastname: Kourova
authors.forename: Valérie
authors.initials: V
authors.lastname: Caro
authors.forename: Christian
authors.initials: C
authors.lastname: Weber
authors.forename: Sabine
authors.initials: S
authors.lastname: Thiberge
authors.forename: Raisa
authors.initials: R
authors.lastname: Chuprinina
authors.forename: Galina
authors.initials: G
authors.lastname: Tseneva
authors.forename: Nicole
authors.initials: N
authors.lastname: Guiso
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism; D000818:Animals; D001884:Bordetella / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D001886:Bordetella pertussis / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D000242:Cyclic AMP / Q000378:metabolism; D016172:DNA Fingerprinting; D016521:Electrophoresis, Gel, Pulsed-Field; D005260:Female; D005838:Genotype; D006801:Humans; D015994:Incidence; D051379:Mice; D008807:Mice, Inbred BALB C; D010567:Pertussis Vaccine / Q000627:therapeutic use*; D010802:Phylogeny; D011110:Polymorphism, Genetic; D012426:Russia / Q000453:epidemiology; D014505:Urban Population; D014917:Whooping Cough / Q000453:epidemiology* / Q000517:prevention & control
chemical_list: D010567:Pertussis Vaccine; D000242:Cyclic AMP; D000262:Adenylyl Cyclases