Abstract:
:In our nursery, we identified neonates with positive urine latex particle agglutination (LPA) tests for group B streptococcus (GBS) antigen who did not have corroborating cultural evidence of infection. To investigate the mechanisms underlying these apparent false-positive reactions, we examined the urine LPA test in an unselected population of neonates suspected of sepsis. Urine specimens for LPA testing and culture and simultaneous perirectal cultures were obtained from 134 neonates with suspected sepsis. Six infants had positive blood cultures for GBS; four of the six were positive by LPA testing. An additional 20 infants had positive LPA tests but negative blood cultures; of these, 13 had mothers who received antibiotic treatment prior to delivery. Two infants with positive LPA results and negative blood cultures had bacteria isolated from urine cultures obtained in a nonsterile fashion (GBS, Escherichia coli). GBS was not isolated from perirectal swabs of infants with positive LPA tests and negative blood cultures. In conclusion, (i) a high proportion of neonates evaluated for sepsis gave positive LPA tests and negative blood cultures, (ii) local contamination of the perirectal skin or urinary tract with GBS was an unlikely source of false-positive LPA reactions, and (iii) maternal antibiotic pretreatment during labor may represent an important cause of apparent false-positive LPA reactions.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Harris MC,Deuber C,Polin RA,Nachamkin Idoi
10.1128/JCM.27.10.2214-2217.1989subject
Has Abstractpub_date
1989-10-01 00:00:00pages
2214-7issue
10eissn
0095-1137issn
1098-660Xjournal_volume
27pub_type
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.12.3.336-342.1980
更新日期:1980-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JCM.16.3.478-482.1982
更新日期:1982-09-01 00:00:00
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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更新日期:2006-02-01 00:00:00
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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更新日期:2005-01-01 00:00:00
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更新日期:1993-02-01 00:00:00
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更新日期:2004-04-01 00:00:00
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journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.44.5.1851-1852.2006
更新日期:2006-05-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::A three-step method for the purification of Enterocytozoon bieneusi spores from stool specimens was developed. The primary process of purification of the spores from bacterial contaminants involved Percoll gradient centrifugation followed by additional separation using cesium chloride density gradient centrifugation. ...
journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.42.7.3256-3261.2004
更新日期:2004-07-01 00:00:00