Antimicrob Agents Chemother 2007, 51:1897–1904.CrossRefPubMed 35. Garcia-Effron G, Dilger A, Alcazar-Fuoli L, Park S, Mellado E, Perlin DS: Rapid detection of triazole antifungal resistance in Aspergillus fumigatus. J Clin Microbiol 2008, 46:1200–1206.CrossRefPubMed 36. Warren N, Hazen K: Candida, Cryptococcus, and other yeasts of medical importance. Manual of Clinical Microbiology (Edited by: Murray RPBE, Pfaller MA, Tenover FC, Yolken RH). Washington, D.C.: ASM Press 1999, 1184–1199. 37. Reference method for broth Epigenetics Compound Library screening dilution antifungal susceptibility testing of yeasts. Approved standard NCCLS document M27-A3 3 Edition National Committee for Clinical Laboratory

Standards: Wayne, PA 2002. 38. Playford EG, Kong F, Sun Y, Wang H, Halliday C, Sorrell TC: Simultaneous detection and identification of Candida, Aspergillus, and Cryptococcus species by reverse line blot hybridization. J Clin Microbiol 2006, 44:876–880.CrossRefPubMed Authors’ contributions SCAC, FK, TCS and HW designed the research. HW and BW carried out the molecular

work and sequence alignment. MX participated in the sequence alignment. NP, FW and DE carried out the microbiological identification FK506 datasheet and susceptibility experiments. PM helped draft the manuscript and performed the susceptibility work on the “”reference”" isolates. HW, FK, TCS, FW and SCAC wrote the manuscript. All authors approved the final version of the manuscript.”
“Background The gastrointestinal (GI) tract of humans is colonized by Escherichia coli within about 40 hours of birth [1]. This facultative anaerobe is then stably maintained as a oxyclozanide relatively minor, but critical, component of the large intestine microflora with a cell density approximately 1000 times lower than the predominant bacterial genera, such as Bacteriodes,

Clostridia, and anaerobic streptococci. E. coli adheres to, and primarily subsists on, the mucin layer that coats the epithelial cells of the large intestine. A dominant, resident strain will normally persist in the GI tract for periods of months to years, until it is eventually replaced by one of the many transient strains continually passing through the intestinal lumen. The basis for these periodic shifts is not known and has recently become the focus of a large body of research [2]. In part, this increased interest in the dynamics of E. coli strains is due to dysbiosis, or microbial imbalances of the normal human microflora of the GI tract. This common outcome of antibiotic therapies is now considered to be a contributing factor to many chronic and degenerative diseases such as irritable bowel syndrome and rheumatoid arthritis [2]. Attempts to re-establish a healthy microbial flora, alleviate GI disorders, and control pathogenic E.