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Echovirus 11

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https://www.readbyqxmd.com/read/29554133/evolution-of-echovirus-11-in-a-chronically-infected-immunodeficient-patient
#1
Majid Laassri, Tatiana Zagorodnyaya, Sharon Hassin-Baer, Rachel Handsher, Danit Sofer, Merav Weil, Konstantinos Karagiannis, Vahan Simonyan, Konstantin Chumakov, Lester Shulman
Deep sequencing was used to determine complete nucleotide sequences of echovirus 11 (EV11) strains isolated from a chronically infected patient with CVID as well as from cases of acute enterovirus infection. Phylogenetic analysis showed that EV11 strains that circulated in Israel in 1980-90s could be divided into four clades. EV11 strains isolated from a chronically infected individual belonged to one of the four clades and over a period of 4 years accumulated mutations at a relatively constant rate. Extrapolation of mutations accumulation curve into the past suggested that the individual was infected with circulating EV11 in the first half of 1990s...
March 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29466658/variability-in-disinfection-resistance-between-currently-circulating-enterovirus-b-serotypes-and-strains
#2
Simon Meister, Matthew E Verbyla, Marius Klinger, Tamar Kohn
The susceptibility of waterborne viruses to disinfection is known to vary between viruses and even between closely related strains, yet the extent of this variation is not known. Here, different enteroviruses (six strains of coxsackievirus B5, two strains of coxsackievirus B4 and one strain of coxackievirus B1) were isolated from wastewater and inactivated by UV254 , sunlight, free chlorine (FC), chlorine dioxide (ClO2 ), and heat. Inactivation kinetics of these isolates were compared with those of laboratory enterovirus strains (CVB5 Faulkner and echovirus 11 Gregory) and MS2 bacteriophage...
March 20, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29407377/analysis-of-enterovirus-types-in-patients-with-symptoms-of-aseptic-meningitis-in-2014-in-shandong-china
#3
Peng Chen, Xiaojuan Lin, Guifang Liu, Suting Wang, Lizhi Song, Zexin Tao, Aiqiang Xu
We reviewed the epidemiological and clinical characteristics of 927 aseptic meningitis patients in Shandong in 2014, and the phylogeny of predominant enterovirus (EV) types causing this disease was analyzed. A total of 209 patients that were positive for EV were identified by both cell culture and a reverse transcription-seminested PCR in cerebrospinal fluid samples. The positive patients were most likely to be children within 15 years of age, had symptoms such as fever, vomiting and nausea (P< .05). The 209 EV sequences belonged to 11 types, and coxsackievirus B5, echovirus types 6 and 30 were predominant types...
March 2018: Virology
https://www.readbyqxmd.com/read/29372173/acute-transverse-myelitis-caused-by-echovirus-11-in-a-pediatric-patient-case-report-and-review-of-the-current-literature
#4
Heidi L Moline, Peter I Karachunski, Anna Strain, Jayne Griffith, Cynthia Kenyon, Mark R Schleiss
A 12-year-old boy presented with acute flaccid weakness of the right upper extremity and was found to have acute flaccid myelitis with transverse myelitis involving the cervical cord (C1-T1). An interdisciplinary team-based approach was undertaken, including input from a generalist, an infectious diseases physician, and a pediatric neurologist. Consultation was sought from the Minnesota Department of Health to investigate for a potential etiology and source of the responsible infection. Evaluation for an infectious etiology demonstrated infection with human echovirus 11...
2018: Child Neurology Open
https://www.readbyqxmd.com/read/29356522/kinetics-of-inactivation-of-waterborne-enteric-viruses-by-ozone
#5
Camille Wolf, Urs von Gunten, Tamar Kohn
Ozone is an effective disinfectant against all types of waterborne pathogens. However, accurate and quantitative kinetic data regarding virus inactivation by ozone are scarce, because of the experimental challenges associated with the high reactivity of ozone toward viruses. Here, we established an experimental batch system that allows tailoring and quantifying of very low ozone exposures and simultaneously measuring virus inactivation. Second-order ozone inactivation rate constants (kO3 -virus ) of five enteric viruses [laboratory and two environmental strains of coxsackievirus B5 (CVF, CVEnv1, and CVEnv2), human adenovirus (HAdV), and echovirus 11 (EV)] and four bacteriophages (MS2, Qβ, T4, and Φ174) were measured in buffered solutions...
February 20, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29225923/experimental-adaptation-of-human-echovirus-11-to-ultraviolet-radiation-leads-to-resistance-to-disinfection-and-ribavirin
#6
Anna Carratalà, Hyunjin Shim, Qingxia Zhong, Virginie Bachmann, Jeffrey D Jensen, Tamar Kohn
Ultraviolet light in the UVC range is a commonly used disinfectant to control viruses in clinical settings and water treatment. However, it is currently unknown whether human viral pathogens may develop resistance to such stressor. Here, we investigate the adaptation of an enteric pathogen, human echovirus 11, to disinfection by UVC, and characterized the underlying phenotypic and genotypic changes. Repeated exposure to UVC lead to a reduction in the UVC inactivation rate of approximately 15 per cent compared to that of the wild-type and the control populations...
July 2017: Virus Evolution
https://www.readbyqxmd.com/read/29046672/cross-resistance-of-uv-or-chlorine-dioxide-resistant-echovirus-11-to-other-disinfectants
#7
Qingxia Zhong, Anna Carratalà, Rachele Ossola, Virginie Bachmann, Tamar Kohn
The emergence of waterborne viruses with resistance to disinfection has been demonstrated in the laboratory and in the environment. Yet, the implications of such resistance for virus control remain obscure. In this study we investigate if viruses with resistance to a given disinfection method exhibit cross-resistance to other disinfectants. Chlorine dioxide (ClO2 )- or UV-resistant populations of echovirus 11 were exposed to five inactivating treatments (free chlorine, ClO2 , UV radiation, sunlight, and heat), and the extent of cross-resistance was determined...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28857219/non-polio-enterovirus-detection-with-acute-flaccid-paralysis-a-systematic-review
#8
Sneha Suresh, Sarah Forgie, Joan Robinson
Acute flaccid paralysis (AFP), as defined by the World Health Organization (WHO), is characterized by an acute onset of limb weakness. In the post-polio era, other enterovirus (EV) serotypes associated with AFP may become more prominent. This study aims to collate the data on the non-polio enteroviruses (NPEV) associated with AFP. A systematic review of published case reports, case series, and surveillance studies of AFP from 1960 through 2017 was undertaken. Data were collected including the country of the study, number of specimens positive for NPEV and available clinical data...
August 31, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28837336/resistance-of-echovirus-11-to-clo-2-is-associated-with-enhanced-host-receptor-use-altered-entry-routes-and-high-fitness
#9
Qingxia Zhong, Anna Carratalà, Hyunjin Shim, Virginie Bachmann, Jeffrey D Jensen, Tamar Kohn
Waterborne viruses can exhibit resistance to common water disinfectants, yet the mechanisms that allow them to tolerate disinfection are poorly understood. Here, we generated echovirus 11 (E11) with resistance to chlorine dioxide (ClO2 ) by experimental evolution, and we assessed the associated genotypic and phenotypic traits. ClO2 resistance emerged after E11 populations were repeatedly reduced (either by ClO2 -exposure or by dilution) and then regrown in cell culture. The resistance was linked to an improved capacity of E11 to bind to its host cells, which was further attributed to two potential causes: first, the resistant E11 populations possessed mutations that caused amino acid substitutions from ClO2 -labile to ClO2 -stable residues in the viral proteins, which likely increased the chemical stability of the capsid toward ClO2 ...
September 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28766163/seroepidemiology-of-echovirus-30-in-korean-children
#10
Joo Young Lee, Yumi Seo, Ui Yoon Choi, Jong-Hyun Kim, Jin Han Kang
BACKGROUND: Although aseptic meningitis associated with echovirus type 30 has emerged as a global public health concern, no data have been reported on Children's immune status against echovirus type 30. The current study aimed to investigate the seropositivity among Korean children for antibodies against echovirus 30. METHODS: Two hundred and fifty residual serum samples were collected at St. Paul's Hospital. Individuals were categorized by age into four groups: group 1 (3 months-2 years), group 2 (3-6 years), group 3 (7-10 years) and group 4 (11-15 years)...
December 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28743260/molecular-evolution-of-two-asymptomatic-echovirus-6-strains-that-constitute-a-novel-branch-of-recently-epidemic-echovirus-6-in-china
#11
Hao Sun, Xiaoqin Huang, Keqin Lin, Kai Huang, Jiayou Chu, Zhaoqing Yang, Shaohui Ma
BACKGROUND: Echovirus 6 (E6) infections are associated with aseptic meningitis and acute flaccid paralysis (AFP). But some infections, sometimes most of them, are asymptomatic. The mechanism of E6 virulence is unknown. Analyses of the molecular evolution of asymptomatic E6 may help understand why the infections show different manifestations. METHODS: Ninety-six stool samples of healthy children in Yunnan, China were collected and two E6 strains were isolated from them...
July 25, 2017: Virology Journal
https://www.readbyqxmd.com/read/28656176/a-three-dimensional-cell-culture-system-to-model-rna-virus-infections-at-the-blood-brain-barrier
#12
John C Bramley, Coyne G Drummond, Nicholas J Lennemann, Charles A Good, Kwang Sik Kim, Carolyn B Coyne
The blood-brain barrier (BBB) comprises the foremost protective barrier in the brain and is composed in part of a layer of microvascular endothelial cells that line the capillaries surrounding the brain. Here, we describe a human three-dimensional (3-D) cell-based model of the BBB microvascular endothelium that recapitulates properties of these cells in vivo, including physiologically relevant transcriptional profiles, the capacity to induce potent antimicrobial innate immune signaling, and the ability to resist infection by diverse RNA viruses, including members of the enterovirus (coxsackievirus B, echovirus 11, enterovirus 71, poliovirus) and flavivirus (dengue virus, Zika virus [ZIKV]) families...
May 2017: MSphere
https://www.readbyqxmd.com/read/28574589/enterovirus-genotypes-among-patients-with-severe-acute-respiratory-illness-influenza-like-illness-and-asymptomatic-individuals-in-south-africa-2012-2014
#13
Orienka Hellferscee, Stefano Tempia, Sibongile Walaza, Ebrahim Variava, Halima Dawood, Nicole Wolter, Shabir A Madhi, Mignon du Plessis, Cheryl Cohen, Florette K Treurnicht
Enteroviruses can cause outbreaks of severe acute respiratory illness (SARI) and EV-A, -B, -C, and -D species have different pathogenic profiles and circulation patterns. We aimed to characterize and determine the prevalence of enterovirus genotypes among South African patients with respiratory illness and controls during June 2012 to July 2014. Syndromic SARI and influenza-like illness (ILI) surveillance was performed at two sentinel sites. At each site nasopharyngeal/oropharyngeal specimens were collected from SARI and ILI patients as well as controls...
October 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28137842/enteroviruses-infect-human-enteroids-and-induce-antiviral-signaling-in-a-cell-lineage-specific-manner
#14
Coyne G Drummond, Alexa M Bolock, Congrong Ma, Cliff J Luke, Misty Good, Carolyn B Coyne
Enteroviruses are among the most common viral infectious agents of humans and are primarily transmitted by the fecal-oral route. However, the events associated with enterovirus infections of the human gastrointestinal tract remain largely unknown. Here, we used stem cell-derived enteroids from human small intestines to study enterovirus infections of the intestinal epithelium. We found that enteroids were susceptible to infection by diverse enteroviruses, including echovirus 11 (E11), coxsackievirus B (CVB), and enterovirus 71 (EV71), and that contrary to an immortalized intestinal cell line, enteroids induced antiviral and inflammatory signaling pathways in response to infection in a virus-specific manner...
February 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28011355/elimination-of-representative-contaminant-candidate-list-viruses-coxsackievirus-echovirus-hepatitis-a-virus-and-norovirus-from-water-by-coagulation-processes
#15
N Shirasaki, T Matsushita, Y Matsui, K Murai, A Aochi
We examined the removal of representative contaminant candidate list (CCL) viruses (coxsackievirus [CV] B5, echovirus type [EV] 11, and hepatitis A virus [HAV] IB), recombinant norovirus virus-like particles (rNV-VLPs), and murine norovirus (MNV) type 1 by coagulation. Water samples were subjected to coagulation with polyaluminum chloride (PACl, basicity 1.5) followed by either settling or settling and filtration. Together with our previously published results, the removal ratio order, as evaluated by a plaque-forming-unit method or an enzyme-linked immunosorbent assay after settling, was HAV>EV=rNV-VLPs≥CV=poliovirus type 1=MNV>adenovirus type 40 (range, 0...
March 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27993855/obatoclax-inhibits-alphavirus-membrane-fusion-by-neutralizing-the-acidic-environment-of-endocytic-compartments
#16
Finny S Varghese, Kai Rausalu, Marika Hakanen, Sirle Saul, Beate M Kümmerer, Petri Susi, Andres Merits, Tero Ahola
As new pathogenic viruses continue to emerge, it is paramount to have intervention strategies that target a common denominator in these pathogens. The fusion of viral and cellular membranes during viral entry is one such process that is used by many pathogenic viruses, including chikungunya virus, West Nile virus, and influenza virus. Obatoclax, a small-molecule antagonist of the Bcl-2 family of proteins, was previously determined to have activity against influenza A virus and also Sindbis virus. Here, we report it to be active against alphaviruses, like chikungunya virus (50% effective concentration [EC50] = 0...
March 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27929744/surveillance-of-poliomyelitis-in-northern-italy-results-of-acute-flaccid-paralysis-surveillance-and-environmental-surveillance-2012-2015
#17
Laura Pellegrinelli, Laura Bubba, Valeria Primache, Elena Pariani, Andrea Battistone, Roberto Delogu, Stefano Fiore, Sandro Binda
Although in the last years poliovirus (PV) transmission has been reported at the lowest levels ever recorded, the spread of virus from endemic countries endures; the high levels of immigration flows across the Mediterranean Sea jeopardize Italy for PV reintroduction. The World Health Organization (WHO) strategic plan for global poliomyelitis (polio) eradication indicates the nationwide surveillance of Acute Flaccid Paralysis (AFP) as the gold standard for detecting cases of polio. In addition, the Environmental Surveillance (ES), seeking the presence of PV and Non-Polio Enterovirus (NPEV) in sewage, is recognized as a powerful tool to confirm PV circulation in absence of AFP cases, especially in polio-free countries...
February 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27510810/one-year-survey-of-human-enteroviruses-from-sewage-and-the-factors-affecting-virus-adsorption-to-the-suspended-solids
#18
Zexin Tao, Zhongtang Wang, Xiaojuan Lin, Suting Wang, Haiyan Wang, Hiromu Yoshida, Aiqiang Xu, Yanyan Song
This study described the results of environmental enterovirus surveillance conducted in Shandong Province of China in 2013. Altogether 39 sewage samples were collected and 873 enterovirus isolates (including 334 polioviruses) belonging to 22 serotypes were obtained. Echovirus (E) -7, coxsackievirus (CV) -B5, E-11, E-6, and E-3 were the most commonly detected non-polio enterovirus serotypes, and phylogeny of E-7 and CV-B5 was described. The numbers of isolates of different serotypes from sewage supernatant were compared with those from the solids...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27506778/changes-in-enterovirus-serotype-constituent-ratios-altered-the-clinical-features-of-infected-children-in-guangdong-province-china-from-2010-to-2013
#19
Hong-Tao Zhou, Yong-Hui Guo, Man-Jun Chen, Yu-Xian Pan, Lin Xue, Bin Wang, Shao-Hua Tao, Nan Yu
BACKGROUND: Enterovirus (EV)-related hand, foot, and mouth disease/herpangina (HFMD/HA) has been prevalent in Guangdong Province, China, since 2010. METHODS: Clinical data for EV-related HFMD/HA inpatients admitted to the Department of Paediatrics of Zhujiang Hospital from 2010 to 2013 were retrospectively reviewed. The corresponding EV serotypes were also determined by reverse transcription-polymerase chain reaction or BLAST analysis of the sequenced partial lengths of the viral protein1/5'-untranslated region...
August 9, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27410516/serum-neutralization-assay-for-the-determination-of-antibody-levels-against-non-polio-enterovirus-strains-in-central-and-western-greece
#20
Antonis Fikatas, Tilemachos G Dimitriou, Zaharoula Kyriakopoulou, Ourania Tsachouridou, Constantina Gartzonika, Stamatina Levidiotou-Stefanou, Grigoris D Amoutzias, Panayotis Markoulatos
Mutations and recombination events have been identified in enteroviruses. Point mutations accumulate with a frequency of 6.3 × 10(-4) per base pair per replication cycle affecting the fitness, the circulation, and the infectivity of enteroviral strains. In the present report, the serological status of the Central and Western Greek population (Larissa and Ioannina, respectively) in the 1-10-year, 11-20-year, 21-30-year, and 31-40-year age groups against six non-polio enterovirus strains, their respective echovirus prototypes, and Sabin 1, 2, and 3 vaccine strains was evaluated, through serum-neutralization assay...
September 2016: Viral Immunology
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