CrossRef 59. Maiden MC, Bygraves JA, Feil E, Morelli G, Russell JE, Urwin R, Zhang Q, Zhou J, Zurth K, Caugant DA, et al.: Multilocus sequence typing: a portable approach

to the identification of clones within populations of pathogenic microorganisms. Proc Natl Acad Sci U S A 1998,95(6):3140–3145.PubMedCrossRef 60. Falush D, Lazertinib purchase Stephens M, Pritchard JK: Inference of population structure using multilocus genotype data: linked loci and correlated allele frequencies. Genetics 2003,164(4):1567–1587.PubMed 61. Tamura K, Nei M, Kumar S: Prospects for inferring very large phylogenies by using the neighbor-joining method. Proc Natl Acad Sci USA 2004,101(30):11030–11035.PubMedCrossRef 62. Tamura K, Peterson N, Stecher G, Nei M, Kumar S: MEGA5: Molecular Evolutionary Genetics Rigosertib purchase analysis using Maximum Likelihood, Evolutionary Distance, and Maximum Parsimony Methods. Mol Biol Evol 2011,28(10):2731–2739.PubMedCrossRef 63. Kong H, Lin LF, Porter N, Stickel S, Byrd D, Posfai J, Roberts RJ: Functional analysis of putative restriction-modification system genes in the Helicobacter pylori J99 genome. Nucleic Acids Res 2000,28(17):3216–3223.PubMedCrossRef

64. McCune A, Grace JB, Urban DL: Analysis of ecological communities. Oregon: MJM Software Design; 2001. 65. Clarke KR: Non-parametric multivariate analyses of changes in community structure. Austral Ecol 1993,18(1):117–143.CrossRef 66. Buck GE, Smith JS: Medium supplementation for growth of Campylobacter pyloridis . J Clin Microbiol 1987,25(4):597–599.PubMed 67. Miles AA, Misra SS, Irwin JO: however The estimation of the bactericidal power of the blood. J Hyg (Lond) 1938,38(6):732–749.CrossRef Competing interests All the authors Dactolisib price declare that they have no competing interests. Authors’ contributions ALM designed the analysis, perform all the in silico analysis, restriction and transformation experiments, analyzed the data and perform statistics, also prepared the manuscript and figures. MS optimized the mathematical model for expected restriction sites and perform all the

simulation analysis. XZ perform the co-culture experiments and participate in the manuscript preparation. PL help with the initial statistical modeling for the simulation analysis. AT and MC provided samples to the completion of the study. LB help analyzing MLST to be assigned to specific haplotype, also collaborate in the manuscript preparation. MGDB and MB participate in the experimental design, discussion of results, preparation and review of the manuscript. All authors read and approved the final manuscript.”
“Background The vaginal microbiota of healthy women of reproductive age is dominated by lactobacilli. Their proportion in this habitat is consistently higher than 70%, in some cases being practically exclusive [1–3]. The evidence compiled about the mutualistic role of lactobacilli on the mucous membranes, together with their harmlessness, has promoted their use as probiotic agents [4].