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. 1983 Jun;17(6):1127–1131. doi: 10.1128/jcm.17.6.1127-1131.1983

Detection of group B streptococcal antigens in amniotic fluid of rhesus monkeys.

V G Hemming, W T London, L P Smith, B L Curfman, G W Fischer, J L Sever
PMCID: PMC272813  PMID: 6348078

Abstract

To simulate group B streptococci (GBS) amniotic fluid infections common in humans and to examine bacterial growth and the appearance of GBS antigens in vivo, GBS were injected into the amniotic cavity of 19 near-term rhesus monkeys. Transabdominal aspirates of amniotic fluid were obtained before bacterial challenge, after 2 and 6 h, and during cesarean section delivery (24 h). Each fluid was quantitatively cultured for GBS. Specimens of amniotic fluid and gastric aspirate from each infant were tested for the presence of GBS antigens with a commercial latex particle agglutination test (Wellcogen Strep B; Wellcome Diagnostics, Dartford, England). To eliminate nonspecific latex particle agglutination reactivity, presumably caused by proteins, a processing procedure was required. Despite active proliferation of bacteria, only 12% of the 2-h amniotic specimens were latex particle agglutination positive. In contrast, 94% of th3 6-h and 100% of the 24-h specimens had detectable antigens, as did 89% of the gastric fluid specimens aspirated from the 19 newborns. Latex particle agglutination tests, after proper processing, will readily detect GBS antigens in amniotic or gastric aspirate fluid from experimentally infected rhesus monkeys.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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