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e. coli in children

Stephen B Freedman, Mohamed Eltorki, Linda Chui, Jianling Xie, Sharon Feng, Judy MacDonald, Andrew Dixon, Samina Ali, Marie Louie, Bonita E Lee, Lara Osterreicher, Jennifer Thull-Freedman
OBJECTIVE: To identify the gaps in the care of children infected with Shiga toxin-producing Escherichia coli (STEC), we sought to quantitate care received and management timelines. Such knowledge is crucial to the design of interventions to prevent the development of hemolytic uremic syndrome (HUS). STUDY DESIGN: We conducted a retrospective case-series study of 78 children infected with STEC in Alberta, Canada, through the linkage of microbiology and laboratory results, telephone health advice records, hospital charts, physician billing submissions, and outpatient antimicrobial dispensing databases...
October 10, 2016: Journal of Pediatrics
Renata Yakubov, Machiel van den Akker, Kaba Machamad, Amit Hochberg, Erez Nadir, Adi Klein
BACKGROUND: Empiric antibiotic treatment of urinary tract infection (UTI) in children relies on surveillance data about epidemiology and resistance patterns of common uropathogens. METHODS: A retrospective analysis of bacteria isolated from urine cultures of children with febrile UTI, seen at the pediatric department of a large regional hospital (Hillel-Yaffe Medical Center, Hadera, Israel) between January 2007 and December 2014. RESULTS: In this study period, 829 positive urine cultures were analyzed...
October 12, 2016: Pediatric Infectious Disease Journal
G S Tansarli, T Skalidis, N J Legakis, M E Falagas
Bacterial vaginosis (BV), candidiasis, and trichomoniasis were the three established types of vaginal conditions until aerobic vaginitis (AV) was defined in the early 2000s. We sought to study the prevalence of abnormal vaginal flora (AVF) with inflammation in our hospital and to correlate it with AV. We prospectively collected vaginal smear specimens originated from symptomatic women who were examined at Iaso Obstetrics, Gynecology and Children's Hospital of Athens from April 2014 until September 2015. Amsel's criteria were used for the diagnosis of BV...
October 13, 2016: European Journal of Clinical Microbiology & Infectious Diseases
Seyed-Mohammad Gheibi Hayat, Seyed-Latif Mousavi Gargari, Shahram Nazarian
ETEC (Enterotoxigenic Escherichia coli) is a major cause of diarrhea in developing countries and children. ETEC has two virulence factors including colonization factors antigen (CFA) and labile enterotoxins (LTs). CFA/I consists the major pilin subunit CfaB and a minor adhesive subunit, CfaE. In this study a tripartite fusion protein containing CfaB, CfaE and LTB was designed. In silico analysis of the tertiary structure of the chimeric protein showed a protein with three main domains linked together with linkers...
October 9, 2016: Biologicals: Journal of the International Association of Biological Standardization
Dineke Westra, Elena B Volokhina, Renate G van der Molen, Thea J A M van der Velden, Annelies Jeronimus-Klaasen, Joop Goertz, Valentina Gracchi, Eiske M Dorresteijn, Antonia H M Bouts, Mandy G Keijzer-Veen, Joanna A E van Wijk, Jaap A Bakker, Anja Roos, Lambert P van den Heuvel, Nicole C A J van de Kar
BACKGROUND: The role of complement in the atypical form of hemolytic uremic syndrome (aHUS) has been investigated extensively in recent years. As the HUS-associated bacteria Shiga-toxin-producing Escherichia coli (STEC) can evade the complement system, we hypothesized that complement dysregulation is also important in infection-induced HUS. METHODS: Serological profiles (C3, FH, FI, AP activity, C3d, C3bBbP, C3b/c, TCC, αFH) and genetic profiles (CFH, CFI, CD46, CFB, C3) of the alternative complement pathway were prospectively determined in the acute and convalescent phase of disease in children newly diagnosed with STEC-HUS or aHUS...
October 7, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Pauline Bondue, Sébastien Crèvecoeur, François Brose, Georges Daube, Marie-Christine Seghaye, Mansel W Griffiths, Gisèle LaPointe, Véronique Delcenserie
Complex oligosaccharides from human milk (HMO) possess an antimicrobial activity and can promote the growth of bifidobacteria such as Bifidobacterium bifidum and Bifidobacterium longum subsp. infantis. In addition, fermentation of carbohydrates by bifidobacteria can result in the production of metabolites presenting an antivirulence effect on several pathogenic bacteria. Whey is rich in complex bovine milk oligosaccharides (BMO) structurally similar to HMO and B. crudilactis, a species of bovine origin, is able to metabolize some of those complex carbohydrates...
2016: Frontiers in Microbiology
Thomas G Blanchard, Steven J Czinn
Establishment of Helicobacter pylori infection as an etiologic agent of peptic ulcer disease and other gastric pathologies marked a revolution in gastroenterology which spurred an enormous interest in gastric physiology and immunology research. The association was soon also demonstrated in children as well. Application of antimicrobial therapies have proven remarkably efficacious in eradicating H. pylori and curing pediatric patients of duodenal ulcers as well as gastritis, negating a lifetime of ineffective therapy and life-threatening disease...
October 4, 2016: Pediatric Research
Cinzia Germinario, Alfredo Caprioli, Mario Giordano, Maria Chironna, Maria Serena Gallone, Silvio Tafuri, Fabio Minelli, Antonella Maugliani, Valeria Michelacci, Luisa Santangelo, Onofrio Mongelli, Cosimo Montagna, Gaia Scavia
In summer 2013, an excess of paediatric cases of haemolytic uraemic syndrome (HUS) in a southern region of Italy prompted the investigation of a community-wide outbreak of Shiga toxin 2-producing Escherichia coli (STEC) O26:H11 infections. Case finding was based on testing patients with HUS or bloody diarrhoea for STEC infection by microbiological and serological methods. A case-control study was conducted to identify the source of the outbreak. STEC O26 infection was identified in 20 children (median age 17 months) with HUS, two of whom reported severe neurological sequelae...
September 22, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
Jie Liu, James A Platts-Mills, Jane Juma, Furqan Kabir, Joseph Nkeze, Catherine Okoi, Darwin J Operario, Jashim Uddin, Shahnawaz Ahmed, Pedro L Alonso, Martin Antonio, Stephen M Becker, William C Blackwelder, Robert F Breiman, Abu S G Faruque, Barry Fields, Jean Gratz, Rashidul Haque, Anowar Hossain, M Jahangir Hossain, Sheikh Jarju, Farah Qamar, Najeeha Talat Iqbal, Brenda Kwambana, Inacio Mandomando, Timothy L McMurry, Caroline Ochieng, John B Ochieng, Melvin Ochieng, Clayton Onyango, Sandra Panchalingam, Adil Kalam, Fatima Aziz, Shahida Qureshi, Thandavarayan Ramamurthy, James H Roberts, Debasish Saha, Samba O Sow, Suzanne E Stroup, Dipika Sur, Boubou Tamboura, Mami Taniuchi, Sharon M Tennant, Deanna Toema, Yukun Wu, Anita Zaidi, James P Nataro, Karen L Kotloff, Myron M Levine, Eric R Houpt
BACKGROUND: Diarrhoea is the second leading cause of mortality in children worldwide, but establishing the cause can be complicated by diverse diagnostic approaches and varying test characteristics. We used quantitative molecular diagnostic methods to reassess causes of diarrhoea in the Global Enteric Multicenter Study (GEMS). METHODS: GEMS was a study of moderate to severe diarrhoea in children younger than 5 years in Africa and Asia. We used quantitative real-time PCR (qPCR) to test for 32 enteropathogens in stool samples from cases and matched asymptomatic controls from GEMS, and compared pathogen-specific attributable incidences with those found with the original GEMS microbiological methods, including culture, EIA, and reverse-transcriptase PCR...
September 24, 2016: Lancet
S T Ten, U Hashim, S C B Gopinath, W W Liu, K L Foo, S T Sam, S F A Rahman, C H Voon, A N Nordin
Surface acoustic wave mediated transductions have been widely used in the sensors and actuators applications. In this study, a shear horizontal surface acoustic wave (SHSAW) was used for the detection of food pathogenic Escherichia coli O157:H7 (E.coli O157:H7), a dangerous strain among 225 E. coli unique serotypes. A few cells of this bacterium are able to cause young children to be most vulnerable to serious complications. Presence of higher than 1cfu E.coli O157:H7 in 25g of food has been considered as a dangerous level...
September 12, 2016: Biosensors & Bioelectronics
Joon Hee Lee, Seul Ki Kim, Seong Koo Kim, Seung Beom Han, Jae Wook Lee, Dong Gun Lee, Nack Gyun Chung, Bin Cho, Dae Chul Jeong, Jin Han Kang, Hack Ki Kim
BACKGROUND: The incidence of bacteremia caused by Gram-negative bacteria has increased recently in febrile neutropenic patients with the increase of antibiotic-resistant Gram-negative bacterial infections. This study aimed to identify the distribution of causative bacteria and the proportion of antibiotic-resistant bacteria in bacteremia diagnosed in febrile neutropenic children. MATERIALS AND METHODS: The medical records of febrile neutropenic children diagnosed with bacteremia between 2010 and 2014 were retrospectively reviewed...
September 2016: Infection & Chemotherapy
Aliou Thiongane, Aliou Abdoulaye Ndongo, Idrissa Demba Ba, Djibril Boiro, Papa Moctar Faye, Younoussa Keita, Aïssatou Ba, Djeynaba Fafa Cissé, Idrissa Basse, Lamine Thiam, Indou Déme Ly, Babacar Niang, Abou Ba, Amadou Lamine Fall, Saliou Diouf, Ousmane Ndiaye, Mamadou Ba, Mamadou Sarr
Hemolytic-uremic syndrome (HUS) is a common cause of organic acute renal failure (ARF) in children. It is a progressive complication of acute gastroenteritis (AGE), especially caused by Escherichia coli in children. This study aimed to describe the clinical, therapeutic and evolutionary aspects of this affection in four children. We collected four cases of HUS. The average age was 10,5 months (5-15mois), exclusively boys. Clinical examination revealed a hemolytic anemia (pallor and jaundice), oligoanuria and edematous syndrome (2 cases), arterial hypertension (1 patient), AGE associated with severe dehydration and hypovolemic shock (2 patients), consciousness disorders...
2016: Pan African Medical Journal
J Hrdý, I Kocourková, R Lodinová-Žádníková, L Kolářová, L Prokešová
Probiotics are believed to prevent or reduce allergy development but the mechanism of their beneficial effect is still poorly understood. Immune characteristics of regulatory T cells (Tregs) in peripheral blood of perinatally probiotic-supplemented children of allergic mothers (51 children), non-supplemented children of allergic mothers (42 children), and non-supplemented children of healthy mothers (28 children) were compared at the age of 6-7 years. A first dose of a probiotic Escherichia coli strain (E. coli O83:K24:H31) was administered within 2 days after the birth and then 12 times during the first months of life and children were followed longitudinally...
September 16, 2016: Beneficial Microbes
Elvia Michelli, Adriana Millán, Hectorina Rodulfo, Mirian Michelli, Jesús Luiggi, Numirin Carreño, Marcos De Donato
INTRODUCTION: Diarrheagenic Escherichia coli is an important causative agent of acute diarrheic syndrome.  OBJECTIVE: To identify clonal groups of enteropathogenic E. coli (EPEC), in 485 children with acute diarrhea aged 0 to 10 years attending health care centers in Arismendi, Benítez and Sucre municipalities, Sucre state, Venezuela, from March to December, 2011.  MATERIALS AND METHODS: After obtaining the informed consent, stool samples were collected...
2016: Biomédica: Revista del Instituto Nacional de Salud
M Harries, J Dreesman, S Rettenbacher-Riefler, E Mertens
Children may be at higher risk for carriage of antimicrobial-resistant bacteria because of higher usage of antimicrobials. They also have higher rates of Shiga toxin-producing Escherichia coli (STEC) infections than other population groups. Some infections, particularly in children, are asymptomatic, but still lead to the excretion of large numbers of bacteria and viruses that may cause clinical disease in other individuals. That is one reason why, in Lower Saxony as in other German federal states - asymptomatic carriers of STEC are excluded from nurseries and schools until three consecutive stool samples test negative in order to prevent secondary cases...
September 9, 2016: Epidemiology and Infection
Kassu Desta, Yimtubezinash Woldeamanuel, Aklilu Azazh, Halima Mohammod, Dawit Desalegn, Damte Shimelis, Dereje Gulilat, Biruk Lamisso, Eyasu Makonnen, Alemayehu Worku, Kerstin Mannerqvist, Johan Struwe, Olov Aspevall, Eleni Aklillu
We investigated the gastrointestinal colonization rate and antibiotic resistance patterns of Extended-Spectrum Beta-Lactamase (ESBL)- producing Escherichia coli and Klebsiella pneumoniae in hospitalized patients admitted at Ethiopia's largest tertiary hospital. Fecal samples/swabs from 267 patients were cultured on chrome agar. ESBL. Bacterial species identification, verification of ESBL production and antibiotic susceptibility testing were done using Vitek 2 system (bioMérieux, France). Phenotype characterization of ESBL-E...
2016: PloS One
Tracy H Hazen, Michael S Donnenberg, Sandra Panchalingam, Martin Antonio, Anowar Hossain, Inacio Mandomando, John Benjamin Ochieng, Thandavarayan Ramamurthy, Boubou Tamboura, Shahida Qureshi, Farheen Quadri, Anita Zaidi, Karen L Kotloff, Myron M Levine, Eileen M Barry, James B Kaper, David A Rasko, James P Nataro
Enteropathogenic Escherichia coli (EPEC) are diarrhoeagenic E. coli, and are a significant cause of gastrointestinal illness among young children in developing countries. Typical EPEC are identified by the presence of the bundle-forming pilus encoded by a virulence plasmid, which has been linked to an increased severity of illness, while atypical EPEC lack this feature. Comparative genomics of 70 total EPEC from lethal (LI), non-lethal symptomatic (NSI) or asymptomatic (AI) cases of diarrhoeal illness in children enrolled in the Global Enteric Multicenter Study was used to investigate the genomic differences in EPEC isolates obtained from individuals with various clinical outcomes...
2016: Nature Microbiology
Shannon A Novosad, Mathew R P Sapiano, Cheri Grigg, Jason Lake, Misha Robyn, Ghinwa Dumyati, Christina Felsen, Debra Blog, Elizabeth Dufort, Shelley Zansky, Kathryn Wiedeman, Lacey Avery, Raymund B Dantes, John A Jernigan, Shelley S Magill, Anthony Fiore, Lauren Epstein
BACKGROUND: Sepsis is a serious and often fatal clinical syndrome, resulting from infection. Information on patient demographics, risk factors, and infections leading to sepsis is needed to integrate comprehensive sepsis prevention, early recognition, and treatment strategies. METHODS: To describe characteristics of patients with sepsis, CDC and partners conducted a retrospective chart review in four New York hospitals. Random samples of medical records from adult and pediatric patients with administrative codes for severe sepsis or septic shock were reviewed...
2016: MMWR. Morbidity and Mortality Weekly Report
Anna Calzi, Sara Grignolo, Ilaria Caviglia, Maria Grazia Calevo, Giuseppe Losurdo, Giorgio Piaggio, Roberto Bandettini, Elio Castagnola
UNLABELLED: To investigate antibiotic resistance among pathogens isolated from urines in a tertiary care children's hospital in Italy. Retrospective analysis of prospectively collected data on antibiotic susceptibility of Gram-negatives isolated from urines at the Istituto Giannina Gaslini, Genoa - Italy from 2007 to 2014. Antibiotic susceptibility was evaluated. By means of CLSI criteria from 2007 to 2010, while from 2011 EUCAST criteria were adopted. Data on susceptibility to amoxicillin-clavulanate, co-trimoxazole, cefuroxime, nitrofurantoin, fosfomycin and ciprofloxacin were evaluated for Escherichia coli, while for other Enterobacteriaceae data were collected for amoxicillin-clavulanate, co-trimoxazole and ciprofloxacin and for ciprofloxacin against Pseudomonas aeruginosa...
September 2016: European Journal of Pediatrics
Mercedes de la Torre, Nieves de Lucas, Roberto Velasco, Borja Gómez, Santiago Mintegi
BACKGROUND: Recent studies have shown changes in the aetiology of serious bacterial infections in febrile infants ≤ 90 days of age. The aim of this study was to describe the current microbiology and outcomes of these infections in Spain. MATERIAL AND METHODS: Sub-analysis of a prospective multicentre study focusing on febrile infants of less than 91 days of life, admitted between October 2011 and September 2013 to Emergency Departments of 19 Spanish hospitals, members of the Spanish Paediatric Emergency Research Group of the Spanish Society of Paediatric Emergencies (RISeuP/SPERG)...
August 16, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
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