Pseudo-outbreak ofMycobacterium gordonaeFollowing the Opening of a Newly Constructed Hospital at a Chicago Medical Center
| Autor: | Barbara Schmitt, John Segreti, Robert A. Weinstein, Kavitha Prabaker, Chethra Muthiah, Sharon F. Welbel, Mary K. Hayden, Gordon M. Trenholme, Mary Alice Lavin, Mary Lou Scorza, Kathleen G. Beavis, Jyothirmai Cheerala |
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| Rok vydání: | 2014 |
| Předmět: |
Microbiology (medical)
Veterinary medicine Epidemiology Water contamination Colony Count Microbial Mycobacterium Infections Nontuberculous Mycobacterium gordonae Disease Outbreaks Pseudo outbreak Microbiology Hospitals University medicine Humans Chicago Gastric Juice medicine.diagnostic_test biology business.industry Drinking Water Sputum Outbreak Nontuberculous Mycobacteria University hospital biology.organism_classification Infectious Diseases Bronchoalveolar lavage Carrier State Nontuberculous mycobacteria medicine.symptom Water Microbiology business Bronchoalveolar Lavage Fluid |
| Zdroj: | Infection Control & Hospital Epidemiology. 36:198-203 |
| ISSN: | 1559-6834 0899-823X |
| Popis: | OBJECTIVETo identify the source of a pseudo-outbreak ofMycobacterium gordonaeDESIGNOutbreak investigation.SETTINGUniversity Hospital in Chicago, Ilinois.PATIENTSHospital patients withM. gordonae-positive clinical cultures.METHODSAn increase in isolation ofM. gordonaefrom clinical cultures was noted immediately following the opening of a newly constructed hospital in January 2012. We reviewed medical records of patients withM. gordonae-positive cultures collected between January and December 2012 and cultured potable water specimens in new and old hospitals quantitatively for mycobacteria.RESULTSOf 30 patients withM. gordonae-positive clinical cultures, 25 (83.3%) were housed in the new hospital; of 35 positive specimens (sputum, bronchoalveolar lavage, gastric aspirate), 32 (91.4%) had potential for water contamination.M. gordonaewas more common in water collected from the new vs. the old hospital [147 of 157 (93.6%) vs. 91 of 113 (80.5%),P=.001]. Median concentration ofM. gordonaewas higher in the samples from the new vs. the old hospital (208 vs. 48 colony-forming units (CFU)/mL;PM. gordonaewere lower in water samples from ice and water dispensers [13 of 28 (46.4%) and 0 CFU/mL] compared with water samples from patient rooms and common areas [225 of 242 (93%) and 146 CFU/mL,PCONCLUSIONSM. gordonaewas common in potable water. The pseudo-outbreak ofM. gordonaewas likely due to increased concentrations ofM. gordonaein the potable water supply of the new hospital. A silver ion-impregnated 0.5-μm filter may have been responsible for lower concentrations ofM. gordonaeidentified in ice/water dispenser samples. Hospitals should anticipate that construction activities may amplify the presence of waterborne nontuberculous mycobacterial contaminants.Infect Control Hosp Epidemiol 2014;00(0): 1–6 |
| Databáze: | OpenAIRE |
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