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https://www.readbyqxmd.com/read/27771182/a-novel-inactivated-enterovirus-71-vaccine-can-elicit-cross-protective-immunity-against-coxsackievirus-a16-in-mice
#1
Lisheng Yang, Yajing Liu, Shuxuan Li, Huan Zhao, Qiaona Lin, Hai Yu, Xiumin Huang, Qingbing Zheng, Tong Cheng, Ningshao Xia
Hand, foot, and mouth disease (HFMD) is a highly contagious disease that mainly affects infants and children. Enterovirus 71 (EV71) and coxsackievirus A16 (CA16) are the major pathogens of HFMD. Two EV71 vaccines were recently licensed in China and the administration of the EV71 vaccines is believed to significantly reduce the number of HFMD-related severe or fatal cases. However, a monovalent EV71 vaccine cannot cross-protect against CA16 infection, this may result in that it cannot effectively control the overall HFMD epidemic...
October 19, 2016: Vaccine
https://www.readbyqxmd.com/read/27770527/role-of-viral-pathogens-in-infants-with-systemic-infection-at-the-newborn-intensive-care-units-in-georgia
#2
M Kochlamazashvili, Kh Khatiashvili, M Butsashvili, O Chubinishvili, Sh Khetsuriani, G Kamkamidze
In Georgia, causative agents among infants with systemic infections are generally not identified and "neonatal sepsis" is usually diagnosed and treated without determining the etiology. The objective of this study was to estimate the role of viral pathogens (Herpesviridae and Enteroviruses) among neonates with generalized infections. A cross-sectional study was performed among neonates younger than <8 weeks admitted to a neonatal intensive care unit (NICU) at the two largest pediatric hospitals in Tbilisi, Georgia...
September 2016: Georgian Medical News
https://www.readbyqxmd.com/read/27695644/neonatal-enterovirus-infection-case-series-of-clinical-sepsis-and-positive-cerebrospinal-fluid-polymerase-chain-reaction-test-with-myocarditis-and-cerebral-white-matter-injury-complications
#3
Frank H Morriss, Julie B Lindower, Heather L Bartlett, Dianne L Atkins, Jean O Kim, Jonathan M Klein, Bradley A Ford
Objective We describe five neonates with enteroviral (EV) infection to demonstrate central nervous system (CNS) and cardiac complications and report successful treatment of myocarditis with immunoglobulin intravenous (IVIG) in two. Study Design Case series identified during three enteroviral seasons in one neonatal intensive care unit (NICU) by cerebral spinal fluid (CSF) reverse transcriptase polymerase chain reaction (PCR) testing for EV in neonates suspected to have sepsis, but with sterile bacterial cultures...
July 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/27673425/treatment-of-perinatal-viral-infections-to-improve-neurologic-outcomes
#4
REVIEW
William J Muller
Viral infections in the fetus or newborn often involve the central nervous system (CNS) and can lead to significant morbidity and mortality. Substantial progress has been made in identifying interventions decreasing adverse neurodevelopmental outcomes in this population. This review highlights progress in treatment of important viruses affecting the CNS in these susceptible hosts, focusing on herpes simplex virus (HSV), cytomegalovirus (CMV), human immunodeficiency virus (HIV), and enteroviruses. The observation that high-dose acyclovir improves mortality in neonatal HSV disease culminated decades of antiviral research for this disease...
October 26, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27598292/-a-randomized-double-blind-placebo-controlled-trial-of-pleconaril-for-the-treatment-of-neonates-with-enterovirus-sepsis
#5
Mariluz Hernández
No abstract text is available yet for this article.
June 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/27505281/molecular-epidemiology-of-enterovirus-and-parechovirus-infections-according-to-patient-age-over-a-4-year-period-in-spain
#6
María Cabrerizo, María Díaz-Cerio, Carmen Muñoz-Almagro, Núria Rabella, David Tarragó, María Pilar Romero, María José Pena, Cristina Calvo, Sonia Rey-Cao, Antonio Moreno-Docón, Inés Martínez-Rienda, Almudena Otero, Gloria Trallero
The epidemiology and clinical association of enterovirus (EV) and parechovirus (HPeV) infections, as well as the type-distribution-according-to-age, were determined during a 4-year study period in Spain. During 2010-2013, a total of 21,832 clinical samples were screened for EV and the detection frequency was 6.5% (1,430). Of the total EV-negative samples, only 1,873 samples from 2011 to 2013 were available for HPeV testing. HPeV was detected in 42 (2%) of them. Positive samples were genotyped using PCR and sequencing...
August 9, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27478556/enteroviral-meningitis-in-neonates-and-children-of-mashhad-iran
#7
Mohammad Javad Ghabouli Shahroodi, Kiarash Ghazvini, Reza Sadeghi, Mohammad Saeed Sasan
BACKGROUND: The highest incidence of meningitis occurs during the neonatal period and (then) infancy. Although Bacterial agents are the most dangerous cause of neonatal and childhood meningitis yet viruses especially, enteroviruses (EV), are by far the most common cause of meningitis in this age group. OBJECTIVES: The aim of the current study was to evaluate the role of EVs in neonatal and childhood meningitis in the Mashhad city of Iran. MATERIALS AND METHODS: This was a descriptive study that was performed at Imam Reza hospital in a period of six months (March to September 2007), during which all of the cerebral spinal fluid (CSF) samples from the neonatal intensive care unit (NICU) and pediatrics ward were collected and real time-polymerase chain reaction (RT-PCR) for EVs was done on these samples...
May 2016: Jundishapur Journal of Microbiology
https://www.readbyqxmd.com/read/27442375/antiviral-combination-approach-as-a-perspective-to-combat-enterovirus-infections
#8
REVIEW
Angel S Galabov, Ivanka Nikolova, Ralitsa Vassileva-Pencheva, Adelina Stoyanova
Human enteroviruses distributed worldwide are causative agents of a broad spectrum of diseases with extremely high morbidity, including a series of severe illnesses of the central nervous system, heart, endocrine pancreas, skeleton muscles, etc., as well as the common cold contributing to the development of chronic respiratory diseases, including the chronic obstructive pulmonary disease. The above mentioned diseases along with the significantly high morbidity and mortality in children, as well as in the high-risk populations (immunodeficiencies, neonates) definitely formulate the chemotherapy as the main tool for the control of enterovirus infections...
2015: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27434146/pulmonary-hemorrhage-due-to-coxsackievirus-b-infection-a-call-to-raise-suspicion-of-this-important-complication-as-an-end-stage-of-enterovirus-sepsis-in-preterm-twin-neonates
#9
Rotem Orbach, Dror Mandel, Ronit Lubetzky, Amit Ovental, Alon Haham, Ora Halutz, Galia Grisaru-Soen
BACKGROUND: Prematurity is an important risk factor for the fulminate form of neonatal enteroviral infection. Pulmonary hemorrhage is a morbid complication that should be anticipated and managed aggressively due to its fatal outcome. OBJECTIVE: To emphasize the significance of pulmonary hemorrhage as a complication of severe enterovirus infection in preterm neonates. STUDY DESIGN: This report is a description of the clinical history, medical management and clinical outcomes of two pairs of preterm twin newborns (30 weeks and 36 weeks) with fulminant infection due to Coxsackievirus B (CBV) infection...
September 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27337462/enteroviruses-and-parechoviruses
#10
James J Dunn
Infections with enteroviruses and human parechoviruses are highly prevalent, particularly in neonates, where they may cause substantial morbidity and mortality. Individuals with B-cell-related immunodeficiencies are at risk for severe enteroviral infections, usually a chronic and fatal meningoencephalitis. In transplant recipients and patients with malignancy, enterovirus infections typically involve the respiratory tract, but cases of severe, disseminated infection have been described. The mainstay of diagnosis for enterovirus and human parechovirus infections involves the use of molecular diagnostic techniques...
June 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/27259043/human-enterovirus-71-protein-displayed-on-the-surface-of-saccharomyces-cerevisiae-as-an-oral-vaccine
#11
Congdang Zhang, Yi Wang, Shuzhi Ma, Leike Li, Liyun Chen, Huimin Yan, Tao Peng
Human enterovirus 71 (EV-A71), a major agent of hand, foot, and mouth disease, has become an important public health issue in recent years. No effective antiviral or vaccines against EV-A71 infection are currently available. EV-A71 infection intrudes bodies through the gastric mucosal surface and it is necessary to enhance mucosal immune response to protect children from these pathogens. Recently, the majority of EV-A71 vaccine candidates have been developed for parenteral immunization. However, parenteral vaccine candidates often induce poor mucosal responses...
June 2016: Viral Immunology
https://www.readbyqxmd.com/read/27257010/inhibitory-effects-of-norwogonin-oroxylin-a-and-mosloflavone-on-enterovirus-71
#12
Hwa Jung Choi, Hyuk-Hwan Song, Jae-Sug Lee, Hyun-Jeong Ko, Jae-Hyoung Song
Severe complications associated with EV71 infections are a common cause of neonatal death. Lack of effective therapeutic agents for these infections underlines the importance of research for the development of new antiviral compounds. In the present study, the anti-EV71 activity of norwogonin, oroxylin A, and mosloflavone from Scutellaria baicalensis Georgi was evaluated using a cytopathic effect (CPE) reduction method, which demonstrated that all three compounds possessed strong anti-EV71 activity and decreased the formation of visible CPEs...
September 1, 2016: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/27250900/perinatal-coxsackievirus-b3-infection-with-transient-thrombocytopenia
#13
Akimune Kaga, Yu Katata, Akira Suzuki, Kanako Otani, Hiroshi Watanabe, Setsuko Kitaoka, Satoru Kumaki
Coxsackievirus (Cox) B is the second common picornaviruses, after echovirus, detected from children younger than 2 months of age. Neonates who present with Cox B3 infection in the first week are known to have severe illness such as myocarditis or menigoencephalitis. Severity is commonly associated with perinatal vertical transmission. Here, we report a neonatal case of Cox B3 infection with severe thrombocytopenia through horizontal transmission. The patient was a preterm infant born without asphyxia by selective cesarean section...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27182999/viral-infections-in-neonates-with-suspected-late-onset-bacterial-sepsis-a-prospective-cohort-study
#14
André Kidszun, Lena Klein, Julia Winter, Isabella Schmeh, Britta Gröndahl, Stephan Gehring, Markus Knuf, Kerstin Weise, Eva Mildenberger
Objective The aim of our study was to evaluate the occurrence of viral infections in infants with suspected late-onset bacterial sepsis in a neonatal intensive care unit. Methods In a prospective study, infants with suspected late-onset bacterial sepsis underwent viral testing alongside routine blood culture sampling. Using a multiplex reverse transcription-polymerase chain reaction enzyme-linked immunosorbent assay, nasopharyngeal aspirates were analyzed for adenovirus, respiratory syncytial virus (RSV), influenza virus A and B, H1N1 virus, parainfluenza virus 1 to 4, metapneumovirus, coronavirus, and picornavirus...
May 16, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27149142/enterovirus-infection-in-febrile-neonates-a-hospital-based-prospective-cohort-study
#15
Xiao-Qing Lv, Ling-He Qian, Tai Wu, Tian-Ming Yuan
AIM: This study aims to investigate clinical characteristics and microbiological results and to assess the predictors for enterovirus infection in febrile neonates. METHODS: A prospective cohort study was conducted on 334 febrile patients (age: 0.33-28 days) in 2011-2012 years. Enterovirus RNA was detected by reverse transcription polymerase chain reaction on faeces or cerebrospinal fluid (CSF). Clinical characteristics were compared, and non-conditional logistic regression analysis was performed to determine independent predictors for enterovirus infection...
August 2016: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/27145174/enteroviral-proteases-structure-host-interactions-and-pathogenicity
#16
REVIEW
Olli H Laitinen, Emma Svedin, Sebastian Kapell, Anssi Nurminen, Vesa P Hytönen, Malin Flodström-Tullberg
Enteroviruses are common human pathogens, and infections are particularly frequent in children. Severe infections can lead to a variety of diseases, including poliomyelitis, aseptic meningitis, myocarditis and neonatal sepsis. Enterovirus infections have also been implicated in asthmatic exacerbations and type 1 diabetes. The large disease spectrum of the closely related enteroviruses may be partially, but not fully, explained by differences in tissue tropism. The molecular mechanisms by which enteroviruses cause disease are poorly understood, but there is increasing evidence that the two enteroviral proteases, 2A(pro) and 3C(pro) , are important mediators of pathology...
July 2016: Reviews in Medical Virology
https://www.readbyqxmd.com/read/27141650/-early-enterovirus-neonatal-infection-when-should-we-think-about-it
#17
REVIEW
D Lagae, V Rigo, J-M Senterre, M Kalenga, J Piérart
Enterovirus (EV) may cause a broad spectrum of clinical syndromes and even cause a sepsis-like picture. Although they are responsible for high morbidity and mortality rates, viral testing does not appear in the algorithms for the evaluation of neonatal infections. During the month of June 2013, we identified 3 cases of EV meningitis in our unit of neonatology. All three infants had fever during the first week of life and their clinical examination revealed an irritability. The EV infection was detected by Real-Time Polymerase Chain Reaction (RT-PCR) EV on the cerebrospinal fluid (CSF)...
February 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/27035332/genomic-and-immunologic-factors-associated-with-viral-pathogenesis-in-a-lethal-ev71-infected-neonatal-mouse-model
#18
Yingying Yue, Peng Li, Nannan Song, Bingqing Li, Zhihui Li, Yuqi Guo, Weidong Zhang, Ming Q Wei, Zhongtao Gai, Hong Meng, Jiwen Wang, Lizeng Qin
Hand, foot and mouth disease (HFMD) caused by enterovirus 71 (EV71) has emerged as a major health problem in China and worldwide. The present study aimed to understand the virological features of EV71 and host responses resulting from EV71 infection. Six different EV71 strains were isolated from HFMD patients with severe or mild clinical symptoms, and were analyzed for pathogenicity in vitro and in vivo. The results demonstrated that the six virus strains exhibited similar cytopathogenic effects on susceptible MA104 cells...
May 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/26861413/identification-of-a-nucleotide-in-5-untranslated-region-contributing-to-virus-replication-and-virulence-of-coxsackievirus-a16
#19
Zhaolong Li, Xin Liu, Shaohua Wang, Jingliang Li, Min Hou, Guanchen Liu, Wenyan Zhang, Xiao-Fang Yu
Coxsackievirus A16 (CA16) and enterovirus 71 (EV71) are two main causative pathogens of hand, foot and mouth disease (HFMD). Unlike EV71, virulence determinants of CA16, particularly within 5' untranslated region (5'UTR), have not been investigated until now. Here, a series of nucleotides present in 5'UTR of lethal but not in non-lethal CA16 strains were screened by aligning nucleotide sequences of lethal circulating Changchun CA16 and the prototype G10 as well as non-lethal SHZH05 strains. A representative infectious clone based on a lethal Changchun024 sequence and infectious mutants with various nucleotide alterations in 5'UTR were constructed and further investigated by assessing virus replication in vitro and virulence in neonatal mice...
2016: Scientific Reports
https://www.readbyqxmd.com/read/26809443/ev71-virus-like-particles-produced-by-co-expression-of-capsid-proteins-in-yeast-cells-elicit-humoral-protective-response-against-ev71-lethal-challenge
#20
Xiaowen Wang, Xiangqian Xiao, Miao Zhao, Wei Liu, Lin Pang, Xin Sun, Shan Cen, Burton B Yang, Yuming Huang, Wang Sheng, Yi Zeng
BACKGROUND: Enterovirus 71 (EV71) is the most common causative pathogens of hand, foot and mouth disease (HFMD) associated with severe neurological complications. There is a great need to develop prophylactic vaccine against EV71 infection. RESULTS: EV71 virus-like particle (VLP) was produced in yeast expression system by the co-expression of four EV71 structural proteins VP1-VP4. Immunization with the recombinant VLPs elicited potent anti-EV71 antibody responses in adult mice and anti-VLP sera were able to neutralize EV71 virus in vitro...
2016: BMC Research Notes
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