Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1998-3-26
|
pubmed:abstractText |
Several multidrug-resistant (MDR) isolates of Streptococcus pneumoniae recovered from a variety of clinical sources and expressing serotypes 9N, 14, 19F, and 3 could not be distinguished from the capsular type 23 Spanish/USA epidemic clone in antibiotype, pulsed-field gel electrophoretic pattern, and restriction fragment length polymorphism types of their penicillin binding protein genes 1A, 2X, and 2B. When tested in a mouse model of virulence, isolates expressing capsular type 3 were lethal for 100% of infected animals within 2 days after intraperitoneal injection of 10(2) cfu/mouse. In contrast, several capsular type 23F isolates belonging to the MDR Spanish/USA clone and recovered from the same site were not lethal, even when injected at the dose of 10(7) cfu/mouse. These data suggest that the pneumococcal isolates expressing serotypes 9N, 14, 19F, and 3 represent products of in vivo capsular transformation events in which the MDR epidemic capsular type 23F Spanish/USA clone was the recipient.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
AIM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0022-1899
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
177
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
707-13
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:9498451-Animals,
pubmed-meshheading:9498451-Bacterial Capsules,
pubmed-meshheading:9498451-DNA, Bacterial,
pubmed-meshheading:9498451-Drug Resistance, Multiple,
pubmed-meshheading:9498451-Electrophoresis, Gel, Pulsed-Field,
pubmed-meshheading:9498451-Genes, Bacterial,
pubmed-meshheading:9498451-Mice,
pubmed-meshheading:9498451-Microbial Sensitivity Tests,
pubmed-meshheading:9498451-Polymorphism, Restriction Fragment Length,
pubmed-meshheading:9498451-Serotyping,
pubmed-meshheading:9498451-Streptococcus pneumoniae,
pubmed-meshheading:9498451-Transformation, Bacterial
|
pubmed:year |
1998
|
pubmed:articleTitle |
Capsular transformation of a multidrug-resistant Streptococcus pneumoniae in vivo.
|
pubmed:affiliation |
Laboratory of Microbiology, Rockefeller University, New York, New York 10021, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|