Linked Life Data

11023463

Source:http://linkedlifedata.com/resource/pubmed/id/11023463

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-12-1
pubmed:abstractText
To elucidate the potential role of the etiologic agent in recent increases of pertussis incidence in the United States, we studied the polymorphism in pertactin and pertussis toxin, which are Bordetella pertussis proteins important for pathogenesis and immunity. We sequenced regions of their genes (prn and ptx) in 152 B. pertussis strains isolated from 1935 through 1999 and identified 2 prn sequences: prn1 (old), observed continuously since 1935, and prn2 (new), not recognized until 1981 but seen in 97% of tested isolates in 1999. There were 3 ptx S1 subunit sequences: ptxS1D (old) was identified in 3 strains (1935 and 1939); ptxS1B (old) represented 87% of the strains recovered during 1935-1974; and ptxS1A (new) was the most prevalent during 1975-1987 and 1989-1999 (64% and 78%, respectively). Potential association between vaccination and the observed shift from old to new types requires further study. Our results provide the basis for prospectively monitoring for changes among circulating B. pertussis that might have epidemiologic relevance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-1899
pubmed:author
pubmed:issnType
Print
pubmed:volume
182
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1402-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Polymorphism in Bordetella pertussis pertactin and pertussis toxin virulence factors in the United States, 1935-1999.
pubmed:affiliation
Division for Bacterial and Mycotic Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. PCassiday@cdc.gov. PCassiday@cdc.gov
pubmed:publicationType
Journal Article