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https://www.readbyqxmd.com/read/28250116/a-neonatal-murine-model-of-coxsackievirus-a6-infection-for-evaluation-of-antiviral-and-vaccine-efficacy
#1
Zhenjie Zhang, Zhaopeng Dong, Qingjuan Wei, Michael J Carr, Juan Li, Shujun Ding, Yigang Tong, Dong Li, Weifeng Shi
Hand, foot and mouth disease (HFMD) is a global health concern. Family Picornaviridae members, particularly enterovirus 71 (EVA71) and Coxsackievirus A16 (CVA16), are the primary etiological agents of HFMD, however, a third enterovirus A species, CoxsackievirusA6 (CVA6), has been recently associated with epidemic outbreaks. Study of the pathogenesis of CVA6 infection and development of antivirals and vaccines are hindered due to the lack of appropriate animal models. We have developed and characterized a murine model of CVA6 infection which was employed to evaluate the antiviral activities of different drugs and the protective efficacies of CVA6-inactivated vaccines...
March 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28231269/a-mouse-model-of-paralytic-myelitis-caused-by-enterovirus-d68
#2
Alison M Hixon, Guixia Yu, J Smith Leser, Shigeo Yagi, Penny Clarke, Charles Y Chiu, Kenneth L Tyler
In 2014, the United States experienced an epidemic of acute flaccid myelitis (AFM) cases in children coincident with a nationwide outbreak of enterovirus D68 (EV-D68) respiratory disease. Up to half of the 2014 AFM patients had EV-D68 RNA detected by RT-PCR in their respiratory secretions, although EV-D68 was only detected in cerebrospinal fluid (CSF) from one 2014 AFM patient. Given previously described molecular and epidemiologic associations between EV-D68 and AFM, we sought to develop an animal model by screening seven EV-D68 strains for the ability to induce neurological disease in neonatal mice...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28134705/cutaneous-manifestations-of-systemic-viral-diseases-in-neonates-an-update
#3
Stephanie A Castillo, Anh Khoa Pham, James G Dinulos
PURPOSE OF REVIEW: Dermatologic findings may be the first signs of a neonatal viral infection. This review provides an update of the diagnostic features and therapies for selected viral illnesses [herpes simplex virus (HSV), varicella zoster virus, enterovirus, and Zika virus] that present with cutaneous manifestations in the neonate. RECENT FINDINGS: HSV DNA polymerase chain reaction of plasma and cerebrospinal fluid, routinely used in the diagnosis of neonatal HSV, may have expanded utility in assessing prognosis and acyclovir therapeutic efficacy...
April 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28121929/correlation-of-symptomatic-enterovirus-infection-and-later-risk-of-allergic-diseases-via-a-population-based-cohort-study
#4
Zon-Min Lee, Ying-Hsien Huang, Shu-Chen Ho, Ho-Chang Kuo
Infants who are exposed to the rhinovirus or respiratory syncytial virus are at a higher risk of subsequently developing wheezing or asthma. This study aims to determine whether preschoolers with a history of symptomatic enterovirus infection are at an increased risk of developing allergic diseases or not.We used data from the Taiwan National Health Insurance Research Database from 1999 to 2006 for this nationwide population-based cohort study. The subsequent risks for allergic diseases, which included asthma (International Classification of Diseases [ICD]-9: 493...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28050469/interference-of-vaccine-derived-polio-viruses-with-diagnosis-of-enteroviral-diseases-in-neonatal-period
#5
Mohammad Saeed Sasan, Alireza Ataei Nakhaei, Abdolvahab Alborzi, Mazyar Ziyaeyan
INTRODUCTION: Enteroviruses (EV) are a common cause of neonatal sepsis especially at the junction of summer and fall. AIM: This study was planned to find the frequency of Enteroviral (EV) sepsis among neonates with clinical sepsis. MATERIALS AND METHODS: This is a prospective descriptive study. Rectal and pharyngeal swab samples were taken from all neonates with clinical sepsis and a control group of neonates with simple jaundice. EV was confirmed by both cell culture and RT-PCR...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27934956/placental-antibody-transfer-efficiency-and-maternal-levels-specific-for-measles-coxsackievirus-a16-enterovirus-71-poliomyelitis-i-iii-and-hiv-1-antibodies
#6
Chuanxi Fu, Long Lu, Hao Wu, Jeffrey Shaman, Yimin Cao, Fang Fang, Qiongying Yang, Qing He, Zhicong Yang, Ming Wang
Maternal antibodies transported across the placenta can provide vital immunity against infectious pathogens for infants. We here examine maternal antibody (MA) levels and their association with neonatal antibody levels. Pregnant women of gestational age ≥35 weeks were enrolled at a Guangzhou China hospital and mother-infant paired sera were collected. Measles IgG antibody was detected using ELISA assay, neutralizing antibodies titers against coxsackievirus A16 (CA16), enterovirus 71 (EV71), PV I-III and HIV-1 were performed...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27771182/a-novel-inactivated-enterovirus-71-vaccine-can-elicit-cross-protective-immunity-against-coxsackievirus-a16-in-mice
#7
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
#8
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
#9
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
#10
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...
January 2017: 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
#11
RANDOMIZED CONTROLLED TRIAL
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
#12
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...
March 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/27478556/enteroviral-meningitis-in-neonates-and-children-of-mashhad-iran
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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...
January 2017: American Journal of Perinatology
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