ABSTRACT
OBJECTIVES: The purpose of this study was to assess the microbiological quality of unchlorinated drinking water in Korea, 2010. One hundred and eighty unchlorinated drinking water samples were collected from various sites in Seoul and Gyeonggi province. METHODS: To investigate bacterial presence, the pour plate method was used with cultures grown on selective media for total bacteria, total coliforms, and Staphylococcus spp., respectively. RESULTS: In the 180 total bacteria investigation, 72 samples from Seoul and 33 samples from Gyeonggi province were of an unacceptable quality (>10(2) CFU/mL). Of all the samples tested, total coliforms were detected in 28 samples (15.6%) and Staphylococcus spp. in 12 samples (6.7%). Most of the coliform isolates exhibited high-level resistance to cefazolin (88.2%), cefonicid (64.7%) and ceftazidime (20.6%). In addition, Staphylococcus spp. isolates exhibited high-level resistance to mupirocin (42%). Species of Pseudomonas, Acinetobacter, Cupriavidus, Hafnia, Rahnella, Serratia, and Yersinia were isolated from the water samples. CONCLUSIONS: The results of this study suggest that consumption of unchlorinated drinking water could represent a notable risk to the health of consumers. As such, there is need for continuous monitoring of these water sources and to establish standards.
Subject(s)
Acinetobacter , Bacteria , Cefazolin , Cefonicid , Ceftazidime , Cupriavidus , Drinking , Drinking Water , Hafnia , Korea , Mupirocin , Pseudomonas , Rahnella , Serratia , Staphylococcus , Water , YersiniaABSTRACT
Se reporta el aislamiento de Rahnella aquatilis en dos pacientes, en muestras de secreción umbilical con fístula entero cutánea y orina de infección urinaria obtenida por punción vesical. Se mencionan las características bioquímicas que permiten su clasificación, así como su comportamiento ante los antimicrobianos. Se reporta que ambos casos se resolvieron exitosamente. Se hace revisión de la literatura al respecto y se señala la baja frecuencia de aislamiento de esta bacteria, en el campo clínico, a nivel mundial
Subject(s)
Female , Child, Preschool , Adult , Peptococcus/isolation & purification , Urinary Tract Infections/diagnosis , Urinary Tract Infections/etiology , Urinary Tract Infections/drug therapy , Urine , Rahnella/isolation & purification , Gram-Negative Aerobic Bacteria/isolation & purification , Cutaneous Fistula/surgery , Gentamicins/therapeutic use , Costa RicaABSTRACT
Rahnella aquatilis, an infrequently isolated gram-negative rod, is the only species of the genus Rahnella within the Enterobacteriaceae family. The organism's natural habitat is water, from which most isolates have been recoverd. Infecions in humans have only occasionally been reported, especially in immunocompromised patients. We reort a case of bacteremia caused by this organism in a hemodialysis patient.