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listeria neonates

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https://www.readbyqxmd.com/read/29742151/genetic-diversity-and-virulence-profiles-of-listeria-monocytogenes-recovered-from-bulk-tank-milk-milk-filters-and-milking-equipment-from-dairies-in-the-united-states-2002-to-2014
#1
Seon Woo Kim, Julie Haendiges, Eric N Keller, Robert Myers, Alexander Kim, Jason E Lombard, Jeffrey S Karns, Jo Ann S Van Kessel, Bradd J Haley
Unpasteurized dairy products are known to occasionally harbor Listeria monocytogenes and have been implicated in recent listeriosis outbreaks and numerous sporadic cases of listeriosis. However, the diversity and virulence profiles of L. monocytogenes isolates recovered from these products have not been fully described. Here we report a genomic analysis of 121 L. monocytogenes isolates recovered from milk, milk filters, and milking equipment collected from bovine dairy farms in 19 states over a 12-year period...
2018: PloS One
https://www.readbyqxmd.com/read/29618405/the-validation-of-the-sample6-detect-tm-ht-l-for-aoac-research-institute
#2
Kakolie Banerjee, Brittney Peirson, Chuxuan Hu, Elijah Carrier, Lauren Malsick, Yekaterina Tarasova, Sophie Daudenarde, Daniel Brownell, Michael Koeris, Nicole Klass, Patrick Bird, M Joseph Benzinger, James Agin, David Goins
Background : Listeria spp. are an important foodborne human pathogenbecause of their ability to cause disease and high mortality in individuals, particularly pregnant women, neonates, the elderly, immunocompromised individuals, and children. The Sample6 DETECTTM HT/L Kit is a semi-automated qualitative pathogen detection system designed to detect Listeria spp. ( L. monocytogenes, L. innocua, L. ivanovii, L. seeligeri, L. welshimeri, and L. marthii ) in environmental samples using the Sample6 BioIlluminationTM technology...
April 4, 2018: Journal of AOAC International
https://www.readbyqxmd.com/read/29433694/antibioth%C3%A3-rapie-des-infections-n%C3%A3-onatales-bact%C3%A3-riennes-pr%C3%A3-coces-chez-les-nouveau-n%C3%A3-s-n%C3%A3-s-%C3%A3-partir-de-34-semaines-d%C3%A2-am%C3%A3-norrh%C3%A3-e
#3
O Romain
All newborns superior to 34 weeks of gestationnal age (GA) are concerned by these guidelines of the French Society of Neonatology and the French Society of Pediatrics. Only newborns at risk of Early-Onset Neonatal Bacterial Infection who are clinically symptomatic have to be treated with probabilistic antibiotherapy treatment. The antibiotic combination of choice is amoxicillin + gentamicin. The two exceptions that justify dual therapy with Cefotaxime and Gentamicin are the bacteriological documentation of Escherichia coli and/or the presence of clinical signs of severity...
December 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29177381/-neonatal-meningitis-in-a-general-hospital-in-lima-peru-2008-to-2015
#4
George Lewis, Maggie Schweig, Daniel Guillén-Pinto, María Luz Rospigliosi
Aiming at describing the incidence, clinical characteristics and factors associated with neonatal meningitis (NM), a case series study was conducted from 2008 to 2015, where 53 neonates, 10 with early onset NM and 43 with late onset were included. An incidence of 1.5 per thousand live births and a lethality of 3.8% were found. The associated factors were peripartum fever, urinary tract infection and chorioamnionitis (P < 0.05). Frequent symptoms were fever (84.9%), hypotonia (77.4%) and hypoactivity (73...
April 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/29060962/-clinical-analysis-of-19-pregnancies-complicated-listeriosis
#5
L H Kuang, Y H Gong, M Su, Y M Jiang
Objective: To analyze the clinical characteristics and perinatal outcomes of listeriosis during pregnancy. Methods: From July 2010 to April 2017, 70 131 women delivered in West China Second University Hospital. Nineteen cases were confirmed as listeriosis. The clinical symptoms, laboratory results, pathogens, placenta pathology and perinatal outcomes were analyzed retrospectively. Results: The median age of the 19 cases was 29.7 (19.0-42.0) years old. The median time before diagnosis was 4.8(0.5-19.0) days...
October 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28956537/epidemiology-and-treatment-of-the-commonest-form-of-listeriosis-meningitis-and-bacteraemia
#6
Pasquale Pagliano, Ferhat Arslan, Tiziana Ascione
Listeria monocytogenes is a Gram-positive bacillus and facultative intracellular bacterium whose transmission occurs mainly through the consumption of contaminated food. Listeriosis has an incidence estimated at around three-six cases per million per year and the most common forms of the infection are neurolisteriosis, bacteraemia, and maternal-neonatal infection. Those affected by listeriosis are at the extremes age of the life or report specific risk factors, such as malignancies, causing a defect of cellular immunity...
September 1, 2017: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/28903312/gnp-gapdh1-22-nanovaccines-prevent-neonatal-listeriosis-by-blocking-microglial-apoptosis-and-bacterial-dissemination
#7
Ricardo Calderon-Gonzalez, Elisabet Frande-Cabanes, Hector Teran-Navarro, José María Marimon, Javier Freire, David Salcines-Cuevas, M Carmen Fariñas, Claudia Onzalez-Rico, Marco Marradi, Isabel Garcia, Mirian Alkorta-Gurrutxaga, Aida San Nicolas-Gomez, Ana Castañeda-Sampedro, Sonsoles Yañez-Diaz, Soledad Penades, Carmen Punzon, Javier Gomez-Roman, Fernando Rivera, Manuel Fresno, Carmen Alvarez-Dominguez
Clinical cases of neonatal listeriosis are associated with brain disease and fetal loss due to complications in early or late pregnancy, which suggests that microglial function is altered. This is believed to be the first study to link microglial apoptosis with neonatal listeriosis and listeriosis-associated brain disease, and to propose a new nanovaccine formulation that reverses all effects of listeriosis and confers Listeria monocytogenes (LM)-specific immunity. We examined clinical cases of neonatal listeriosis in 2013-2015 and defined two useful prognostic immune biomarkers to design listeriosis vaccines: high anti-GAPDH1-22 titres and tumor necrosis factor (TNF)/interleukin (IL)-6 ratios...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28753580/gnp-gapdh1-22-nanovaccines-prevent-neonatal-listeriosis-by-blocking-microglial-apoptosis-and-bacterial-dissemination
#8
Ricardo Calderon-Gonzalez, Elisabet Frande-Cabanes, Hector Teran-Navarro, José María Marimon, Javier Freire, David Salcines-Cuevas, M Carmen Fariñas, Claudia Gonzalez-Rico, Marco Marradi, Isabel Garcia, Mirian Alkorta-Gurrutxaga, Aida San Nicolas-Gomez, Ana Castañeda-San Pedro, Sonsoles Yañez-Diaz, Soledad Penades, Carmen Punzon, Javier Gomez-Roman, Fernando Rivera, Manuel Fresno, Carmen Alvarez-Dominguez
Clinical cases of neonatal listeriosis are associated with brain disease and fetal loss due to complications in early or late pregnancy, which suggests that microglial function is altered. This is believed to be the first study to link microglial apoptosis with neonatal listeriosis and listeriosis-associated brain disease, and to propose a new nanovaccine formulation that reverses all effects of listeriosis and confers Listeria monocytogenes (LM)-specific immunity. We examined clinical cases of neonatal listeriosis in 2013-2015 and defined two useful prognostic immune biomarkers to design listeriosis vaccines: high anti-GAPDH1-22 titres and tumor necrosis factor (TNF)/interleukin (IL)-6 ratios...
July 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28692184/traditional-empiric-antibiotic-treatment-is-still-effective-for-neonatal-fever
#9
Maytal Kristal, Vika Dor, Daniel Glikman
No abstract text is available yet for this article.
November 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28677403/septicemia-and-meningoencephalitis-caused-by-listeria-monocytogenes-in-two-neonatal-llamas
#10
Ian K Hawkins, Marcia Ilha, Eman Anis, Rebecca P Wilkes
Listeriosis is a disease of humans and domestic mammals (mainly ruminants) with variable manifestations, primarily encephalitis, septicemia, and abortion. Although Listeria monocytogenes readily causes illness in ruminants, the prevalence among domestic South American camelids (llamas and alpacas) is low and has not been documented in their wild counterparts, the vicuna and guanaco. We describe herein the clinical signs, autopsy findings, and histopathology of septicemia and suppurative meningoencephalitis caused by L...
September 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28655824/-listeria-placental-infection
#11
REVIEW
José A Vázquez-Boland, Emilia Krypotou, Mariela Scortti
The Gram-positive facultative intracellular bacterium Listeria monocytogenes is the causative agent of listeriosis, a severe food-borne infection. Pregnant women are at risk of contracting listeriosis, which can potentially lead to miscarriage, stillbirth, preterm birth, and congenital neonatal infections. While other systemic bacterial infections may result in adverse pregnancy outcomes at comparable frequencies, L. monocytogenes has particular notoriety because fetal complications largely occur in the absence of overt illness in the mother, delaying medical intervention...
June 27, 2017: MBio
https://www.readbyqxmd.com/read/28619811/full-genome-sequence-of-listeria-monocytogenes-strain-h34-isolated-from-a-newborn-with-sepsis-in-uruguay
#12
Francis Muchaamba, Claudia Guldimann, Taurai Tasara, María Inés Mota, Valeria Braga, Gustavo Varela, Gabriela Algorta, Jochen Klumpp, Marco Jermini, Roger Stephan
The foodborne pathogen Listeria monocytogenes causes severe disease mainly in the vulnerable populations of the young, old, pregnant, and immunocompromised. Here, we present the genome sequence of L. monocytogenes H34, a serotype 1/2b, lineage I, sequence type 489 (ST489) strain, isolated from a neonatal sepsis case in Uruguay.
June 15, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28536811/listeriosis-during-pregnancy
#13
REVIEW
Mitko Madjunkov, Shahnaz Chaudhry, Shinya Ito
PURPOSE: Listeriosis is a rare foodborne illness caused by Listeria monocytogenes. It can be transmitted by consuming contaminated ready-to-eat food, long shelf-life products, deli meats, and soft cheeses. Listeria has a predilection to affect immunocompromised patients, elderly people, pregnant women and neonates. In particular, pregnant women are at ~18 times greater risk of infection than general population due to specific pregnancy-related suppressed cell-mediated immunity and placental tropism of L...
August 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28508419/case-control-study-shows-that-neonatal-pneumococcal-meningitis-cannot-be-distinguished-from-group-b-streptococcus-cases
#14
COMPARATIVE STUDY
Alexandra Arfi, Robert Cohen, Emmanuelle Varon, Stéphane Béchet, Stéphane Bonacorsi, Corinne Levy
AIM: Streptococcus pneumoniae (S. pneumoniae) is sometimes implicated in neonatal bacterial meningitis. This study described the demographic, clinical and biological features of neonatal S. pneumoniae meningitis and compared pneumococcal and group B streptococcal (GBS) neonatal meningitis. METHODS: We conducted a case-control study that compared neonates, aged one to 28 days with S. pneumoniae meningitis or GBS meningitis. Each case with S. pneumoniae was randomly matched to four control patients with GBS by age group and study year...
December 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28507070/limited-colonization-undermined-by-inadequate-early-immune-responses-defines-the-dynamics-of-decidual-listeriosis
#15
Gabrielle Rizzuto, Elisa Tagliani, Priyanka Manandhar, Adrian Erlebacher, Anna I Bakardjiev
The bacterial pathogen Listeria monocytogenes causes foodborne systemic disease in pregnant women, which can lead to preterm labor, stillbirth, or severe neonatal disease. Colonization of the maternal decidua appears to be an initial step in the maternal component of the disease as well as bacterial transmission to the placenta and fetus. Host-pathogen interactions in the decidua during this early stage of infection remain poorly understood. Here, we assessed the dynamics of L. monocytogenes infection in primary human decidual organ cultures and in the murine decidua in vivo A high inoculum was necessary to infect both human and mouse deciduas, and the data support the existence of a barrier to initial colonization of the murine decidua...
August 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28484584/etiology-and-laboratory-abnormalities-in-bacterial-meningitis-in-neonates-and-young-infants
#16
David Kotzbauer, Curtis Travers, Craig Shapiro, Margaux Charbonnet, Anthony Cooley, Deborah Andresen, Gary Frank
We conducted a retrospective review of electronic medical records of all cases of bacterial meningitis in neonates and young infants at our institution from 2004 to 2014. Fifty-six cases were identified. The most common causative organism was group B streptococcus, followed by Escherichia coli and then Listeria monocytogenes . Forty-four of the 56 patients in the study had abnormalities of the blood white blood cell (WBC) count. The most common WBC count abnormalities were leukopenia and elevation of the immature to total (I:T) neutrophil ratio...
April 6, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28419853/listeria-monocytogenes-meningitis-in-the-netherlands-1985-2014-a-nationwide-surveillance-study
#17
Merel M Koopmans, Merijn W Bijlsma, Matthijs C Brouwer, Diederik van de Beek, Arie van der Ende
OBJECTIVES: Listeria monocytogenes can cause sepsis and meningitis. We report national surveillance data on L. monocytogenes meningitis in the Netherlands, describing incidence changes, genetic epidemiology and fatality rate. METHODS: We analyzed data from the Netherlands Reference Laboratory of Bacterial Meningitis for cases of L. monocytogenes meningitis. Strains were assessed by serotyping and bacterial population structure by multi-locus sequence typing. RESULTS: A total of 375 cases of Listeria meningitis were identified between 1985 and 2014...
July 2017: Journal of Infection
https://www.readbyqxmd.com/read/28335280/pregnancy-vaccination-with-gold-glyco-nanoparticles-carrying-listeria-monocytogenes-peptides-protects-against-listeriosis-and-brain-and-cutaneous-associated-morbidities
#18
Ricardo Calderón-Gonzalez, Héctor Terán-Navarro, Elisabet Frande-Cabanes, Eva Ferrández-Fernández, Javier Freire, Soledad Penadés, Marco Marradi, Isabel García, Javier Gomez-Román, Sonsoles Yañez-Díaz, Carmen Álvarez-Domínguez
Listeriosis is a fatal infection for fetuses and newborns with two clinical main morbidities in the neonatal period, meningitis and diffused cutaneous lesions. In this study, we vaccinated pregnant females with two gold glyconanoparticles (GNP) loaded with two peptides, listeriolysin peptide 91-99 (LLO91-99) or glyceraldehyde-3-phosphate dehydrogenase 1-22 peptide (GAPDH1-22). Neonates born to vaccinated mothers were free of bacteria and healthy, while non-vaccinated mice presented clear brain affections and cutaneous diminishment of melanocytes...
August 19, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28289572/human-listeriosis-presenting-as-breast-abscess-report-of-a-rare-case
#19
Venkataramana Kandi
An abscess is defined as a collection of pus in various tissues of the body including skin and other organs. Abscesses most commonly are formed on the skin under the armpits, groin areas, and rectal areas. Most abscesses involve microbial infections with few remaining sterile. The treatment of abscesses includes both medical and surgical intervention. In the era of multidrug resistance, isolation and identification of the causative microbe and testing for antimicrobial susceptible patterns assume greater significance for the better management of patients, thereby reducing the resultant morbidity and mortality...
February 1, 2017: Curēus
https://www.readbyqxmd.com/read/28223455/acute-fetal-demise-with-first-trimester-maternal-infection-resulting-from-listeria-monocytogenes-in-a-nonhuman-primate-model
#20
Bryce Wolfe, Gregory J Wiepz, Michele Schotzko, Gennadiy I Bondarenko, Maureen Durning, Heather A Simmons, Andres Mejia, Nancy G Faith, Emmanuel Sampene, Marulasiddappa Suresh, Sophia Kathariou, Charles J Czuprynski, Thaddeus G Golos
Infection with Listeria monocytogenes during pregnancy is associated with miscarriage, preterm birth, and neonatal complications, including sepsis and meningitis. While the risk of these conditions is thought to be greatest during the third trimester of pregnancy, the determinants of fetoplacental susceptibility to infection, the contribution of gestational age, and the in vivo progression of disease at the maternal-fetal interface are poorly understood. We developed a nonhuman primate model of listeriosis to better understand antecedents of adverse pregnancy outcomes in early pregnancy...
February 21, 2017: MBio
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