References
- Cosgrove SE. The relationship between antimicrobial resistance and patient outcomes: mortality, length of hospital stay, and health care costs. Clin Infect Dis 2006;42:S82–9.
- Neidell MJ, Cohen B, Furuya Y, Hill J, Jeon CY, Glied S, et al. Costs of healthcare- and community-associated infections with antimicrobial-resistant versus antimicrobial-susceptible organisms. Clin Infect Dis 2012;55:807–15.
- Ribas RM, Darini AL, Moreira TA, Freitas C, Gontijo-Filho PP. Vancomycin-resistant Van A phenotype Enterococcus faecalis: first case in Minas Gerais State and epidemiological considerations. Braz J Infect Dis 2007;11:439–40.
- Batistão DW, Gontijo-Filho PP, Conceição N, Oliveira AG, Ribas RM. Risk factors for vancomycin-resistant enterococci colonisation in critically ill patients. Mem Inst Oswaldo Cruz 2012;107:57–63.
- Conceição N, Darini AL, Palazzo IC, Oliveira CC, Oliveira AG. First report of vancomycin-resistant Enterococcus faecalis in Uberaba, Minas Gerais State. Braz J Microbiol 2010;41:34–6.
- Pan SC, Wang JT, Chen YC, Chang YY, Chen ML, Chang SC. Incidence of and risk factors for infection or colonization of vancomycin-resistant enterococci in patients in the intensive care unit. PLoS One 2012;7:e47297.
- Arias CA, Murray BE. The rise of the Enterococcus: beyond vancomycin resistance. Nat Rev Microbiol 2012; 10:266–78.
- Freitas AR, Tedim AP, Novais C, Ruiz-Garbajosa P, Werner G, Laverde-Gomez JA, et al. Global spread of the hyl(Efm) colonization-virulence gene in megaplasmids of the Enterococcus faecium CC17 polyclonal subcluster. Antimicrob Agents Chemother 2010;54:2660–5.
- Heikens E, Singh KV, Jacques-Palaz KD, van Luit-Asbroek M, Oostdijk EA, Bonten MJ, et al. Contribution of the enterococcal surface protein Esp to pathogenesis of Enterococcus faecium endocarditis. Microbes Infect 2011;13:1185–90.
- Mohamed JA, Huang DB. Biofilm formation by enterococci. J Med Microbiol 2007;56:1581–8.
- Clinical and Laboratory Standards Institute. Performance standards for antimicrobial susceptibility testing. Twenty-first informational supplement. CLSI document M100-S21. Wayne, PA: CLSI; 2011.
- Woodford N, Morrison D, Johnson AP, Briant V, George RC, Cookson B. Application of DNA probes for rRNA and vanA genes to investigation of a nosocomial cluster of vancomycin-resistant enterococci. J Clin Microbiol 1993;31:653–8.
- Dutka-Malen S, Evers S, Courvalin P. Detection of glycopeptide resistance genotypes and identification to the species level of clinically relevant enterococci by PCR. J Clin Microbiol 1995;33:24–7.
- Vankerckhoven V, Van Autgaerden T, Vael C, Lammens C, Chapelle S, Rossi R, et al. Development of a multiplex PCR for the detection of asa1, gelE, cylA, esp, and hyl genes in enterococci and survey for virulence determinants among European hospital isolates of Enterococcus faecium. J Clin Microbiol 2004;42:4473–9.
- Williams VR, Callery S, Vearncombe M, Simor AE. The role of colonization pressure in nosocomial transmission of methicillin-resistant Staphylococcus aureus. Am J Infect Control 2009;37:106–10.
- Khanfar H, Senok A, Anani A, Zinkevich V. Methicillin- resistant Staphylococcus aureus transmission in a low- prevalence healthcare setting. J Infect Public Health 2012; 5:311–6.
- World Health Organization Collaborating Centre for Drug Statistics Methodology. Guidelines for ATC classification and DDD assignment 2012. Oslo: WHO; 2011.
- Arantes A, Carvalho ES, Medeiros EA, Farhat CK, Mantese OC. Use of statistical process control charts in the epidemiological surveillance of nosocomial infections. Rev Saude Publica 2003;37:768–74.
- Schouten MA, Hoogkamp-Korstanje JA, Meis JF, Voss A;European VRE Study Group. Prevalence of vancomycin- resistant enterococci in Europe. Eur J Clin Microbiol Infect Dis 2000;19:816–22.
- Treitman AN, Yarnold PR, Warren J, Noskin GA. Emerging incidence of Enterococcus faecium among hospital isolates (1993 to 2002). J Clin Microbiol 2005;43:462–3.
- Sader HS, Moet GJ, Jones RN. Antimicrobial resistance among Gram-positive bacteria isolated in Latin American hospitals. J Chemother 2009;21:611–20.
- Panesso D, Reyes J, Rincón S, Díaz L, Galloway-Peña J, Zurita J, et al. Molecular epidemiology of vancomycin- resistant Enterococcus faecium: a prospective, multicenter study in South American hospitals. J Clin Microbiol 2010; 48:1562–9.
- Sohn KM, Peck KR, Joo EJ, Ha YE, Kang CI, Chung DR, et al. Duration of colonization and risk factors for prolonged carriage of vancomycin-resistant enterococci after discharge from the hospital. Int J Infect Dis 2013;17:e240–6.
- Furtado GH, Mendes RE, Pignatari AC, Wey SB, Medeiros EA. Risk factors for vancomycin-resistant Enterococcus faecalis bacteremia in hospitalized patients: an analysis of two case–control studies. Am J Infect Control 2006;34:447–51.
- Sakka V, Tsiodras S, Galani L, Antoniadou A, Souli M, Galani I, et al. Risk-factors and predictors of mortality in patients colonised with vancomycin-resistant enterococci. Clin Microbiol Infect 2008;14:14–21.
- Puzniak LA, Leet T, Mayfield J, Kollef M, Mundy LM. To gown or not to gown: the effect on acquisition of vancomycin-resistant enterococci. Clin Infect Dis 2002;35: 18–25.
- Zirakzadeh A, Patel R. Vancomycin-resistant enterococci: colonization, infection, detection, and treatment. Mayo Clin Proc 2006;81:529–36.
- McGregor JC, Hartung DM, Allen GP, Taplitz RA, Traver R, Tong T, et al. Risk factors associated with linezolid-nonsusceptible enterococcal infections. Am J Infect Control 2012;40:886–7.
- Muller A, Mauny F, Talon D, Donnan PT, Harbarth S, Bertrand X. Effect of individual- and group-level antibiotic exposure on MRSA isolation: a multilevel analysis. J Antimicrob Chemother 2006;58:878–81.
- Bonten MJ, Slaughter S, Ambergen AW, Hayden MK, van Voorhis J, Nathan C, et al. The role of “colonization pressure” in the spread of vancomycin-resistant enterococci. Arch Intern Med 1998;158:1127–32.
- Dubberke ER, Reske KA, Olsen MA. Evaluation of Clostridium difficile-associated disease pressure as a risk factor for C. difficile-associated disease. Arch Intern Med 2007;167:1092–7.
- Borges LF, Kataguiri LG, Nunes MJ, Gontijo-Filho PP. Qualitative and quantitative contamination in hands of health care workers in different units of a Brazilian university hospital. Nursing 2006;8:1000–3.
- Camargo IL, Zanella RC, Gilmore MS, Darini AL. Virulence factors in vancomycin-resistant and vancomycin-susceptible Enterococcus faecalis from Brazil. Braz J Microbiol 2008; 39:273–8.
- Ruzon FI, de Paula SB, Kanoshiki RL, Pereira-Santos J, Kerbauy G, Kobayashi RK, et al. Virulence determinants in vancomycin-resistant Enterococcus faecium vanA isolated from different sources at University Hospital of Londrina, Paraná, Brazil. J Microbiol 2010;48:814–21.