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J Infect Dis. 2009 Mar 1;199(5):680-3. doi: 10.1086/596632.

Distribution of genital Lactobacillus strains shared by female sex partners.

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  • 1Department of Medicine, University of Washington, Seattle, Washington, USA. jmm2@u.washington.edu

Abstract

The prevalence of bacterial vaginosis among lesbians is high. We assessed whether unique Lactobacillus strains were shared by female sex partners. Cultures of vaginal and rectal specimens for detection of Lactobacillus organisms were performed for women who reported having had sex with women. Lactobacilli were identified on the basis of DNA homology and were typed and fingerprinted by repetitive element sequence-based polymerase chain reaction (rep-PCR). Of 237 women, Lactobacillus crispatus was detected in 98% and Lactobacillus gasseri in 21%. Detection of L. gasseri was associated with recent receptive digital-vaginal sex (P = .04) and increased bacterial vaginosis risk (odds ratio, 4.2; 95% confidence interval, 1.4-13.4). Of 31 couples monogamous for >3 months, rep-PCR fingerprints were identical in both members in 23 (77%).

PMID:
19199538
[PubMed - indexed for MEDLINE]
PMCID:
PMC3291173
Free PMC Article

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