Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-4-5
pubmed:abstractText
In Japan, the Bordetella pertussis strain Tohama provided by the National Institute of Health, Japan has been used for the production of acellular pertussis (aP) vaccines since 1981. In the present study, in order to verify the genetic consistency of B. pertussis vaccine seed strains, we analyzed the genetic properties of the working seeds obtained from five Japanese vaccine manufacturers, and compared them with those of B. pertussis Tohama reference strains (NIID L-7 and ATCC BAA-589). Genetic analyses with pulsed-field gel electrophoresis and allele typing showed 100% genetic identity among the five seed strains and the Tohama reference strains. In addition, Southern blot analyses revealed the absence of four orthologous genes (BB0537, BB0920, BB1149 and BB4885), which are specifically absent in the strain Tohama, and in the genome of all seed strains tested, suggesting that the regions of difference (RD11-RD14) are absent in their genomes. Consequently, no genetic difference was observed among the working seeds and Tohama reference strains. Our observations indicate that B. pertussis seed strains for Japanese aP vaccine production are genetically comparable with B. pertussis Tohama.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1095-8320
pubmed:author
pubmed:copyrightInfo
(c) 2009 The International Association for Biologicals. Published by Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
290-3
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Genetic verification of Bordetella pertussis seed strains used for production of Japanese acellular pertussis vaccines.
pubmed:affiliation
Department of Bacteriology II, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashimurayama, Tokyo 208-0011, Japan. kamachi@nih.go.jp
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Evaluation Studies