Belinda Calvo1, Analy S A Melo2, Armindo Perozo-Mena3, Martin Hernandez4, Elaine Cristina Francisco5, Ferry Hagen6, Jacques F Meis7, Arnaldo Lopes Colombo8. 1. Departamento de Enfermedades Infecciosas y Tropicales, Escuela de Medicina, Universidad del Zulia, Maracaibo, Venezuela. Electronic address: bcalvom@yahoo.es. 2. Laboratório Especial de Micologia, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil. Electronic address: analysalles@gmail.com. 3. Centro de Referencia Bacteriológica del Servicio Autónomo Hospital Universitario de Maracaibo, Venezuela. Electronic address: aperozomena@gmail.com. 4. Servicio de Medicina Interna de Servicio Autónomo Hospital Universitário de Maracaibo, Venezuela. Electronic address: martinhernandezart2@yahoo.es. 5. Laboratório Especial de Micologia, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil. Electronic address: elaineperol@yahoo.com.br. 6. Department of Medical Microbiology and Infectious Diseases, Canisius-Wilhelmina Hospital (CWZ), Nijmegen, The Netherlands; Radboudumc/CWZ Centre of Excellence in Mycology, Nijmegen, The Netherlands. Electronic address: f.hagen@gmail.com. 7. Department of Medical Microbiology and Infectious Diseases, Canisius-Wilhelmina Hospital (CWZ), Nijmegen, The Netherlands; Radboudumc/CWZ Centre of Excellence in Mycology, Nijmegen, The Netherlands. Electronic address: jacques.meis@gmail.com. 8. Laboratório Especial de Micologia, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil. Electronic address: colomboal@terra.com.br.
Abstract
OBJECTIVES: Characterization of a hospital outbreak of Candida auris candidemia that involved 18 critically ill patients in Venezuela. METHOD: Bloodstream isolates of C. auris obtained from 18 patients admitted at a medical center in Maracaibo, between March, 2012 and July, 2013 were included. Species identification was confirmed by ITS rDNA sequencing. Isolates were subsequently typed by amplified fragment length polymorphism fingerprinting (AFLP). Susceptibility testing was performed according to CLSI. Clinical data were collected from all cases by using a standard clinical form. RESULTS: A total of 13 critically ill pediatric and 5 adult patients, with a median age of 26 days, were included. All were previously exposed to antibiotics and multiple invasive medical procedures. Clinical management included prompt catheter removal and antifungal therapy. Thirteen patients (72%) survived up to 30 days after onset of candidemia. AFLP fingerprinting of all C. auris isolates suggested a clonal outbreak. The isolates were considered resistant to azoles, but susceptible to anidulafungin and 50% of isolates exhibited amphotericin B MIC values of >1 μg/ml. CONCLUSIONS: The study demonstrated that C. auris is a multiresistant yeast pathogen that can be a source of health-care associated infections in tertiary care hospitals with a high potential for nosocomial horizontal transmission.
OBJECTIVES: Characterization of a hospital outbreak of Candida auris candidemia that involved 18 critically ill patients in Venezuela. METHOD: Bloodstream isolates of C. auris obtained from 18 patients admitted at a medical center in Maracaibo, between March, 2012 and July, 2013 were included. Species identification was confirmed by ITS rDNA sequencing. Isolates were subsequently typed by amplified fragment length polymorphism fingerprinting (AFLP). Susceptibility testing was performed according to CLSI. Clinical data were collected from all cases by using a standard clinical form. RESULTS: A total of 13 critically ill pediatric and 5 adult patients, with a median age of 26 days, were included. All were previously exposed to antibiotics and multiple invasive medical procedures. Clinical management included prompt catheter removal and antifungal therapy. Thirteen patients (72%) survived up to 30 days after onset of candidemia. AFLP fingerprinting of all C. auris isolates suggested a clonal outbreak. The isolates were considered resistant to azoles, but susceptible to anidulafungin and 50% of isolates exhibited amphotericin B MIC values of >1 μg/ml. CONCLUSIONS: The study demonstrated that C. auris is a multiresistant yeast pathogen that can be a source of health-care associated infections in tertiary care hospitals with a high potential for nosocomial horizontal transmission.
Authors: Anna Jeffery-Smith; Surabhi K Taori; Silke Schelenz; Katie Jeffery; Elizabeth M Johnson; Andrew Borman; Rohini Manuel; Colin S Brown Journal: Clin Microbiol Rev Date: 2017-11-15 Impact factor: 26.132
Authors: Shawn R Lockhart; Kizee A Etienne; Snigdha Vallabhaneni; Joveria Farooqi; Anuradha Chowdhary; Nelesh P Govender; Arnaldo Lopes Colombo; Belinda Calvo; Christina A Cuomo; Christopher A Desjardins; Elizabeth L Berkow; Mariana Castanheira; Rindidzani E Magobo; Kauser Jabeen; Rana J Asghar; Jacques F Meis; Brendan Jackson; Tom Chiller; Anastasia P Litvintseva Journal: Clin Infect Dis Date: 2016-10-20 Impact factor: 9.079
Authors: Shawn R Lockhart; Brendan R Jackson; Snigdha Vallabhaneni; Luis Ostrosky-Zeichner; Peter G Pappas; Tom Chiller Journal: J Clin Microbiol Date: 2017-09-13 Impact factor: 5.948