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https://www.readbyqxmd.com/read/28797733/propagation-of-respiratory-viruses-in-human-airway-epithelia-reveals-persistent-virus-specific-signatures
#1
Manel Essaidi-Laziosi, Francisco Brito, Sacha Benaoudia, Léna Royston, Valeria Cagno, Mélanie Fernandes-Rocha, Isabelle Piuz, Evgeny Zdobnov, Song Huang, Samuel Constant, Marc-Olivier Boldi, Laurent Kaiser, Caroline Tapparel
BACKGROUND: Leading etiologies of acute illnesses, respiratory viruses typically cause self-limited diseases, though severe complications can occur in fragile patients. Rhinoviruses, respiratory enteroviruses, influenza virus, respiratory syncytial viruses and coronaviruses are highly prevalent respiratory pathogens, but due to the lack of reliable animal models, their differential pathogenesis remains poorly characterized. OBJECTIVE: To compare infections by respiratory viruses isolated from clinical specimens using reconstituted human airway epithelia...
August 7, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28796760/acute-flaccid-myelitis-among-children-washington-september-november-2016
#2
Jesse Bonwitt, Amy Poel, Chas DeBolt, Elysia Gonzales, Adriana Lopez, Janell Routh, Krista Rietberg, Natalie Linton, James Reggin, James Sejvar, Scott Lindquist, Catherine Otten
In October 2016, Seattle Children's Hospital notified the Washington State Department of Health (DOH) and CDC of a cluster of acute onset of limb weakness in children aged ≤14 years. All patients had distinctive spinal lesions largely restricted to gray matter detected by magnetic resonance imaging (MRI), consistent with acute flaccid myelitis (AFM). On November 3, DOH issued a health advisory to local health jurisdictions requesting that health care providers report similar cases. By January 24, 2017, DOH and CDC had confirmed 10 cases of AFM and excluded two suspected cases among residents of Washington during September-November 2016...
August 11, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28792716/a-3-month-old-child-with-acute-gastroenteritis-with-enterovirus-d68-detected-from-stool-specimen
#3
Ngan T K Pham, Aksara Thongprachum, Tsuneyoshi Baba, Shoko Okitsu, Quang D Trinh, Shihoko Komine-Aizawa, Hiroyuki Shimizu, Satoshi Hayakawa, Hiroshi Ushijima
Enterovirus D68 (EV-D68) is known to be causative agent of mild to severe upper and lower respiratory illnesses in sporadic cases and outbreaks. We present a case report of a 3-month-old child with acute gastroenteritis who visited a pediatric clinic in Kyushu area in Japan in 2015. A stool sample collected from the patient was screened for diarrheal viruses by multiplex RT-PCR. The result showed that the sample was positive only for enterovirus, and EV-D68 clade B3 was identified by sequence analysis of the viral protein 1 gene...
July 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28747261/enterovirus-d68-infection-in-a-cluster-of-children-with-acute-flaccid-myelitis-buenos-aires-argentina-2016
#4
Victor Ruggieri, Maria Ivana Paz, María Gabriela Peretti, Carlos Rugilo, Rosa Bologna, Cecilia Freire, Silvana Vergel, Andrea Savransky
OBJECTIVE: To report a outbreak of 11 cases of acute asymmetric flaccid myelopathy due to spinal motor neuron injury. MATERIAL AND METHODS: Eleven children, six male, with a mean age of 3 years presented with acute flaccid myelitis. We analyzed clinical features, etiology, neuroradiological images, treatment, and outcome. RESULTS: Nine children had bilateral and asymmetric flaccid myelitis of the upper limbs, 1 had upper limb monoplegia, and 1 presented with hemiparesis...
July 19, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28737865/unusual-increase-of-cases-of-myelitis-in-a-pediatric-hospital-in-argentina
#5
Guadalupe Pérez, María T Rosanova, María C Freire, María I Paz, Silvina Ruvinsky, Carlos Rugilo, Víctor Ruggieri, Daniel Cisterna, Soledad Martiren, Cristina Lema, Andrea Savransky, Soledad González, Leila Martínez, Diana Viale, Rosa Bologna
INTRODUCTION: The association between enterovirus D68 and acute flaccid myelitis was first described in the United States in 2014. Since then, sporadic cases have been reported in Canada and Europe. This study describes a series of cases of acute flaccid myelitis at Hospital de Pediatría "Prof. Dr. Juan P. Garrahan," in Buenos Aires, Argentina, during 2016. METHODS: Descriptive, retrospective study. All patients with acute flaccid myelitis and lesions in the spinal cord involving the gray matter, as observed in the magnetic resonance imaging (MRI) scan, hospitalized from 04/01/2016 to 07/01/2016, were included in the study...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28689117/development-of-non-pyrogenic-magnetosome-minerals-coated-with-poly-l-lysine-leading-to-full-disappearance-of-intracranial-u87-luc-glioblastoma-in-100-of-treated-mice-using-magnetic-hyperthermia
#6
Edouard Alphandéry, Ahmed Idbaih, Clovis Adam, Jean-Yves Delattre, Charlotte Schmitt, François Guyot, Imène Chebbi
Magnetic hyperthermia was reported to increase the survival of patients with recurrent glioblastoma by 7 months. This promising result may potentially be further improved by using iron oxide nanoparticles, called magnetosomes, which are synthesized by magnetotactic bacteria, extracted from these bacteria, purified to remove most endotoxins and organic material, and then coated with poly-l-lysine to yield a stable and non-pyrogenic nanoparticle suspension. Due to their ferrimagnetic behavior, high crystallinity and chain arrangement, these magnetosomes coated with poly-l-lysine (M-PLL) are characterized by a higher heating power than their chemically synthesized counterparts currently used in clinical trials...
June 21, 2017: Biomaterials
https://www.readbyqxmd.com/read/28661963/first-cases-of-severe-flaccid-paralysis-associated-with-enterovirus-d68-infection-in-spain-2015-2016
#7
María Cabrerizo, Juan Pablo García-Iñiguez, Francina Munell, Alfonso Amado, Paula Madurga-Revilla, Carlos Rodrigo, Sonia Pérez, Ana Martínez-Sapiña, Andrés Antón, Gerardo Suárez, Nuria Rabella, Víctor Del Campo, Almudena Otero, Josefa Masa-Calles
Enterovirus D68 was known to be the cause of mild to severe respiratory infections, but in the last few years it has also been associated with myelitis and paralysis. This report describes the first EV-D68 detections in acute flaccid paralysis cases occurring between December 2015 and March 2016 in Spain.
June 28, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28659472/crystal-structure-and-thermostability-characterization-of-ev-d68-3d-pol
#8
Chunnian Wang, Caiyan Wang, Qing Li, Zhong Wang, Wei Xie
Enterovirus-D68 (EV-D68) is one of the many non-polio enteroviruses that cause mild-to-severe respiratory illness. The non-structural protein 3D(pol) is an RNA-dependent RNA polymerase (RdRP) of EV-D68, which plays a critical role in the replication of the viral genome and represents a promising drug target. Here we report the first three-dimensional crystal structure of RdRP from EV-D68 in complex with the substrate GTP to 2.3-Å resolution. The RdRP structure is similar to those of other viral RdRPs, where the three domains termed the palm, fingers, and thumb form a structure resembling a cupped right hand...
June 28, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28626021/acute-segmental-poliomyelitis-like-flaccid-paralysis-in-an-adult-in-the-uk-associated-with-enterovirus-d68
#9
Sybil R L Stacpoole, Adam Molyneux, Dirk Bäumer
Enterovirus D68 has been associated with a poliomyelitis-like illness, notably during an outbreak in 2014, and particularly affecting children in the USA. We report a case of acute segmental flaccid paralysis with respiratory involvement in an adult in the UK, with enterovirus D68 detected in a sputum sample. MR imaging of cervical spinal cord showed a longitudinally extensive T2 hyperintensity in the anterior cord. Cerebrospinal fluid showed an elevated white cell count, predominantly lymphocytic, with otherwise normal constituents and negative viral PCRs...
August 2017: Practical Neurology
https://www.readbyqxmd.com/read/28618288/an-enhanced-enterovirus-surveillance-system-allows-identification-and-characterization-of-rare-and-emerging-respiratory-enteroviruses-in-denmark-2015-16
#10
Céline Barnadas, Sofie E Midgley, Marianne N Skov, Lotte Jensen, Mille W Poulsen, Thea Kølsen Fischer
BACKGROUND: The potential for outbreaks due to Enteroviruses (EV) with respiratory tropism, such as EV-D68, and the detection of new and rare EV species C is a concern. These EVs are typically not detected in stool specimens and may therefore be missed by standard EV surveillance systems. Following the North American outbreak of EV-D68 in 2014, Denmark piloted an enhanced EV surveillance system that included the screening of respiratory samples. OBJECTIVES: We aim to report clinical manifestations and phylogenetic descriptions from the rare and emerging EVs identified thereby demonstrating the usefulness of this system...
May 29, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28615427/acute-flaccid-myelitis-and-enterovirus-d68-d%C3%A3-j%C3%A3-vu-all-over-again
#11
EDITORIAL
Max Wiznitzer, Avindra Nath
No abstract text is available yet for this article.
July 11, 2017: Neurology
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
#12
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...
June 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28521212/surveillance-for-enterovirus-d68-in-colorado-children-reveals-continued-circulation
#13
Kevin Messacar, Christine C Robinson, Kristin Pretty, Ji Yuan, Samuel R Dominguez
BACKGROUND: The largest, most widespread outbreak of enterovirus D68 respiratory disease occurred from August to December of 2014 in the United States with 1153 confirmed infections in 49 states. The epidemiology of enterovirus D68 following the 2014 outbreak is unknown. OBJECTIVES: This study seeks to describe the epidemiology of enterovirus D68 circulation amongst Colorado children from 2014 to 2016. STUDY DESIGN: This is a prospective observational surveillance study of enterovirus D68 infection amongst children tested for respiratory pathogens from July-October 2014-2016 at Children's Hospital Colorado (CHCO), a quaternary care children's hospital in Aurora, CO...
May 11, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28509856/first-report-of-a-fatal-case-associated-with-ev-d68-infection-in-hong-kong-and-emergence-of-an-interclade-recombinant-in-china-revealed-by-genome-analysis
#14
Cyril C Y Yip, Janice Y C Lo, Siddharth Sridhar, David C Lung, Shik Luk, Kwok-Hung Chan, Jasper F W Chan, Vincent C C Cheng, Patrick C Y Woo, Kwok-Yung Yuen, Susanna K P Lau
A fatal case associated with enterovirus D68 (EV-D68) infection affecting a 10-year-old boy was reported in Hong Kong in 2014. To examine if a new strain has emerged in Hong Kong, we sequenced the partial genome of the EV-D68 strain identified from the fatal case and the complete VP1, and partial 5'UTR and 2C sequences of nine additional EV-D68 strains isolated from patients in Hong Kong. Sequence analysis indicated that a cluster of strains including the previously recognized A2 strains should belong to a separate clade, clade D, which is further divided into subclades D1 and D2...
May 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28489053/nasal-infection-of-enterovirus-d68-leading-to-lower-respiratory-tract-pathogenesis-in-ferrets-mustela-putorius-furo
#15
Hui-Wen Zheng, Ming Sun, Lei Guo, Jing-Jing Wang, Jie Song, Jia-Qi Li, Hong-Zhe Li, Ruo-Tong Ning, Ze-Ning Yang, Hai-Tao Fan, Zhan-Long He, Long-Ding Liu
Data from EV-D68-infected patients demonstrate that pathological changes in the lower respiratory tract are principally characterized by severe respiratory illness in children and acute flaccid myelitis. However, lack of a suitable animal model for EV-D68 infection has limited the study on the pathogenesis of this critical pathogen, and the development of a vaccine. Ferrets have been widely used to evaluate respiratory virus infections. In the current study, we used EV-D68-infected ferrets as a potential animal to identify impersonal indices, involving clinical features and histopathological changes in the upper and lower respiratory tract (URT and LRT)...
May 10, 2017: Viruses
https://www.readbyqxmd.com/read/28487560/seroepidemiology-of-enterovirus-d68-infection-in-china
#16
Zichun Xiang, Linlin Li, Lili Ren, Li Guo, Zhengde Xie, Chunyan Liu, Taisheng Li, Ming Luo, Gláucia Paranhos-Baccalà, Wenbo Xu, Jianwei Wang
Human enterovirus 68 (EV-D68) is a rarely reported virus that has been linked to respiratory disease. In recent years, reports about EV-D68 infection have markedly increased worldwide. However, the epidemiological features of this emerging infection are not well understood. To evaluate the emerging EV-D68 epidemic, we isolated the circulating viral strain and investigated the seroprevalence of neutralizing antibodies (NAbs) in Beijing between 2004 and 2011. We found that the titers of EV-D68 NAbs were generally low in all age groups in sampled populations in 2004 but significantly higher in 2009...
May 10, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28455514/enterovirus-d68-subclade-b3-strain-circulating-and-causing-an-outbreak-in-the-united-states-in-2016
#17
Guiqing Wang, Jian Zhuge, Weihua Huang, Sheila M Nolan, Victoria L Gilrane, Changhong Yin, Nevenka Dimitrova, John T Fallon
In 2014 the United States experienced a nationwide outbreak of Enterovirus D68 (EV-D68) infection. There were no confirmed cases of EV-D68 in 2015 and CDC was only aware of limited sporadic EV-D68 detection in the US in 2016. In this report, we analyzed 749 nasopharyngeal (NP) specimens collected in 2015 and 2016 from patients in the Lower Hudson Valley, New York using a previously validated EV-D68-specific rRT-PCR assay. EV-D68 was detected in none of 199 NP specimens collected in 2015, and in one of 108 (0...
April 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28455155/-spike-in-acute-asthma-exacerbations-during-enterovirus-d68-epidemic-in-japan-a-nation-wide-survey
#18
Seigo Korematsu, Kengo Nagashima, Yasunori Sato, Mizuho Nagao, Shunji Hasegawa, Haruna Nakamura, Shiro Sugiura, Katsushi Miura, Kenji Okada, Takao Fujisawa
BACKGROUND: In September 2015, Japan experienced an unusual increase in acute asthma hospitalizations of children that coincided with an enterovirus D68 (EV-D68) epidemic. The objective of this study is to investigate whether EV-D68 had a causal relationship with the spike in asthma hospitalizations. METHODS: A nation-wide retrospective survey of asthma hospitalizations of children was performed for the period from January 2010 through October 2015. The Japanese Society of Pediatric Allergy and Clinical Immunology asked its affiliated hospitals to report monthly numbers of hospitalizations, ICU admissions and mechanical ventilations due to acute asthma exacerbation...
April 25, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28443999/first-reported-enterovirus-d68-infection-in-pediatric-patients-from-the-caribbean-region-evidence-of-spread-from-the-u-s-outbreak
#19
SueMin Nathaniel, Shalauddin Ahmed, Jennifer Wilson, Cristina Gutierrez, Dave D Chadee, Babatunde Olowokure, Pablo M de Salazar
The 2014 enterovirus D68 (EV-D68) outbreak in the United States raised concerns about the introduction of the virus in the Caribbean region. The objective of this study was to provide rapid evidence of the introduction of EV-D68 strains in the Caribbean region during the 2014 outbreak in the United States, using a relatively simple phylogenetic approach. From October 2014 to May 2015, four EV-D68 cases from two countries (Bermuda and Dominica) were detected at the regional referral laboratory at the Caribbean Public Health Agency (Port of Spain, Trinidad and Tobago) based on molecular testing of respiratory specimens...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28424289/disruption-of-mda5-mediated-innate-immune-responses-by-the-3c-proteins-of-coxsackievirus-a16-coxsackievirus-a6-and-enterovirus-d68
#20
Yajuan Rui, Jiaming Su, Hong Wang, Junliang Chang, Shaohua Wang, Wenwen Zheng, Yong Cai, Wei Wei, James T Gordy, Richard Markham, Wei Kong, Wenyan Zhang, Xiao-Fang Yu
Coxsackievirus A16 (CV-A16), CV-A6, and enterovirus D68 (EV-D68) belong to the Picornaviridae family and are major causes of hand, foot, and mouth disease (HFMD) and pediatric respiratory disease worldwide. The biological characteristics of these viruses, especially their interplay with the host innate immune system, have not been well investigated. In this study, we discovered that the 3C(pro) proteins from CV-A16, CV-A6, and EV-D68 bind melanoma differentiation-associated gene 5 (MDA5) and inhibit its interaction with MAVS...
July 1, 2017: Journal of Virology
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