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https://www.readbyqxmd.com/read/29129453/hepatitis-b-virus-core-particles-containing-multiple-epitopes-confer-protection-against-enterovirus-71-and-coxsackievirus-a16-infection-in-mice
#1
Chunling Huo, Jie Yang, Lei Lei, Lei Qiao, Jiantao Xin, Zishu Pan
Human enterovirus 71 (EV71) and coxsackievirus A16 (CA16) are the two major causative agents of hand-foot-and-mouth disease (HFMD). To investigate novel combined vaccines to prevent EV71 and CA16 infection, we constructed chimeric virus-like particles (tHBc/SPA or tHBc/SP VLPs) displaying conserved epitopes of EV71 (aa 208-222 of VP1 and aa 248-263 of VP2) and CA16 (aa271-285 of VP1) using a truncated hepatitis B virus core carrier (tHBc). Immunization with the chimeric VLPs induced epitope- or virus-specific IgG and neutralization antibodies against EV71 and CA16 in the mice...
November 9, 2017: Vaccine
https://www.readbyqxmd.com/read/29115952/no-evidence-of-enteric-viral-involvement-in-the-new-neonatal-porcine-diarrhoea-syndrome-in-danish-pigs
#2
N B Goecke, C K Hjulsager, H Kongsted, M Boye, S Rasmussen, F Granberg, T K Fischer, S E Midgley, L D Rasmussen, Ø Angen, J P Nielsen, S E Jorsal, L E Larsen
BACKGROUND: The aim of this study was to investigate whether the syndrome New Neonatal Porcine Diarrhoea Syndrome (NNPDS) is associated with a viral aetiology. Four well-managed herds experiencing neonatal diarrhoea and suspected to be affected by NNPDS were included in a case-control set up. A total of 989 piglets were clinically examined on a daily basis. Samples from diarrhoeic and non-diarrhoeic piglets at the age of three to seven days were selected for extensive virological examination using specific real time polymerase chain reactions (qPCRs) and general virus detection methods...
November 7, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29049234/case-report-features-of-hand-foot-and-mouth-disease-in-neonates
#3
Wen-Wen Chen, Zhao-Bin Yang, Lian-Shu Lian, Li-Ping Xu
RATIONALE: Hand, foot and mouth disease (HFMD) is caused by enterovirus. The virus may exist in secretions. PATIENT CONCERNS: Five neonates had symptoms of fever and maculopapular rashes involving face, trunk, breech, arms, and legs, especially scattering on palms and feet. Blood, oropharyngeal fluid, urine, and cerebrospinal fluid (CSF) samples were collected and detected for further diagnoses with the consent of the infants' parents. Some of them suffered aseptic meningitis...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28970319/extracorporeal-membrane-oxygenation-for-neonatal-collapse-caused-by-enterovirus-myocarditis
#4
Gerard Cortina, Derek Best, Markus Deisenberg, Roberto Chiletti, Warwick Butt
OBJECTIVE: To describe the effect of extracorporeal membrane oxygenation (ECMO) on survival and cardiac outcome of neonates with myocardial failure secondary to severe enterovirus (EV) myocarditis. DESIGN: Retrospective case series. SETTING: A 15-bed cardiac paediatric intensive care unit (ICU). PATIENTS: We describe the clinical presentations, cardiac findings, ECMO characteristics and outcome of seven neonates with severe EV myocarditis...
September 29, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28968718/evaluating-treatment-efficacy-in-a-mouse-model-of-enterovirus-d68-paralytic-myelitis
#5
Alison M Hixon, Penny Clarke, Kenneth L Tyler
Background: Enterovirus D68 (EV-D68) associated acute flaccid myelitis (AFM) is a devastating neurological disease for which there are no treatments of proven efficacy. The unpredictable temporal and geographic distribution of cases, and the rarity of the disease, make it unlikely that data from randomized controlled trials will be available to guide therapeutic decisions. We evaluated three widely used empiric therapies: (1) human intravenous immunoglobulin (hIVIG), (2) fluoxetine, and (3) dexamethasone, for the ability to reduce the severity of paralysis in a mouse model of EV-D68 infection...
September 13, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28944227/neonatal-enterovirus-myocarditis-with-severe-dystrophic-calcification-novel-treatment-with-pocapavir
#6
Samuel G Wittekind, Catherine C Allen, John L Jefferies, Mantosh S Rattan, Peace C Madueme, BreAnn N Taylor, Ryan A Moore
Dystrophic myocardial calcification occurs in the setting of myocardial injury and normal serum calcium. We present a case of a neonate with prominent dystrophic calcification and severe left ventricular systolic dysfunction in the setting of enterovirus myocarditis. These findings are superbly illustrated by multiple imaging modalities. The patient was treated with the novel antiviral, pocapavir, in addition to a standard heart failure regimen. The dystrophic calcification persisted but the left ventricle remodeled significantly...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28822736/-rhinovirus-underestimated-pathogens-in-patients-during-the-neonatal-period
#7
S Zacharie, A Vabret, B Guillois, C Dupont, J Brouard
INTRODUCTION: In recent years, developments in virological tools have led to the easy detection of rhinoviruses and enteroviruses (E/RV). Their detection is very frequent in cases of airway involvement in children and their demonstrated causality. But the morbidity of E/RV in the neonatal period is unknown due to lack of epidemiological data. The objective of this study was to evaluate the incidence and clinical characteristics of these infections in hospitalized neonates. MATERIALS AND METHODS: We retrospectively analyzed the virology specimens of all neonates hospitalized at the Caen University Hospital between 2006 and 2011...
September 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28625478/a-neonatal-mouse-model-of-coxsackievirus-a10-infection-for-anti-viral-evaluation
#8
Shuxuan Li, Huan Zhao, Lisheng Yang, Wangheng Hou, Longfa Xu, Yangtao Wu, Wei Wang, Chunye Chen, Junkai Wan, Xiangzhong Ye, Zhenglun Liang, Qunying Mao, Tong Cheng, Ningshao Xia
Epidemiological data indicate that coxsackievirus A10 (CVA10) has become one of the main causative agents of hand, foot and mouth disease (HFMD) and in recent years has often been found to co-circulate with other enteroviruses, which poses a challenge for the prevention and control of HFMD. Although most CVA10-associated HFMD cases present mild symptoms, severe manifestations and even death can also occur. However, the study of the pathogenesis and the development of drugs and vaccines for CVA10 infection are still far from complete...
June 15, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28588119/high-flow-nasal-cannula-utilization-in-pediatric-critical-care
#9
Kristen D Coletti, Dayanand N Bagdure, Linda K Walker, Kenneth E Remy, Jason W Custer
BACKGROUND: High-flow nasal cannula (HFNC) is increasingly utilized in pediatrics, delivering humidified air and oxygen for respiratory conditions causing hypoxia and distress. In the neonatal ICU, it has been associated with better tolerance, lower complications, and lower cost. Few data exist regarding indications for use and the epidemiology of disease/pathology that warrants HFNC in the pediatric ICU. METHODS: This study is a retrospective cohort study of patients admitted to a tertiary children's hospital pediatric ICU and placed on HFNC from October 1, 2011 to October 31, 2013...
August 2017: Respiratory Care
https://www.readbyqxmd.com/read/28540257/dynamic-interaction-of-enterovirus-71-and-dendritic-cells-in-infected-neonatal-rhesus-macaques
#10
Ting Zhao, Zhixiao Zhang, Ying Zhang, Min Feng, Shengtao Fan, Lichun Wang, Longding Liu, Xi Wang, Qinglin Wang, Xiaolong Zhang, Jingjing Wang, Yun Liao, Zhanlong He, Shuaiyao Lu, Huai Yang, Qihan Li
Enterovirus 71 (EV71) is one of the main pathogens responsible for hand, foot, and mouth disease (HFMD). Infection with EV71 can lead to severe clinical disease via extensive infections of either the respiratory or alimentary tracts in children. Based on the previous pathological study of EV71 infections in neonatal rhesus macaques, our work using this animal model and an EV71 chimera that expresses enhanced green fluorescent protein (EGFP-EV71) primarily explored where EV71 localizes and proliferates, and the subsequent initiation of the pathological process...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28511987/human-parechovirus-type-3-infection-an-emerging-infection-in-neonates-and-young-infants
#11
REVIEW
Yuta Aizawa, Ryohei Izumita, Akihiko Saitoh
Human parechoviruses (HPeVs) are RNA viruses that have characteristics similar to those of enteroviruses and usually cause mild respiratory or gastrointestinal symptoms. Human parechovirus type 3 (HPeV3), first reported in 2004, is exceptional because it can provoke sepsis and meningoencephalitis leading to neurological sequelae, and even death, in neonates and young infants. Pediatricians and researchers are increasingly aware that HPeV3 is responsible for serious disease in neonates and young infants. Retrospective studies and several reports of epidemics of HPeV3 infection have provided data on epidemiology, clinical symptoms and signs, laboratory findings, and outcomes...
July 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28490584/a-naturally-occurring-recombinant-enterovirus-expresses-a-torovirus-deubiquitinase
#12
Pengcheng Shang, Saurav Misra, Ben Hause, Ying Fang
Enteroviruses (EVs) are implicated in a wide range of diseases in humans and animals. In this study, a novel enterovirus (enterovirus species G [EVG]) (EVG 08/NC_USA/2015) was isolated from a diagnostic sample from a neonatal pig diarrhea case and identified by using metagenomics and complete genome sequencing. The viral genome shares 75.4% nucleotide identity with a prototypic EVG strain (PEV9 UKG/410/73). Remarkably, a 582-nucleotide insertion, flanked by 3C(pro) cleavage sites at the 5' and 3' ends, was found in the 2C/3A junction region of the viral genome...
July 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28408118/a-novel-combined-vaccine-based-on-monochimeric-vlp-co-displaying-multiple-conserved-epitopes-against-enterovirus-71-and-varicella-zoster-virus
#13
Yangtao Wu, Rui Zhu, Longfa Xu, Yongchao Li, Shuxuan Li, Hai Yu, Shaowei Li, Hua Zhu, Tong Cheng, Ningshao Xia
Chicken pox and hand, foot and mouth disease (HFMD) are two major infectious diseases that mainly affect infants and children, causing significant morbidity annually. Varicella-zoster virus (VZV) and enterovirus 71 (EV71), respectively, are the principal epidemic pathogens causing these two diseases. To investigate the possibility of developing a novel combined vaccine to prevent chicken pox and HFMD, we constructed three chimeric virus-like particles (VLPs) (termed HBc-V/1/2, HBc-2/V/1 and HBc-1/2/V) based on the hepatitis B core antigen (HBc) carrier that display epitopes derived from VZV-gE, EV71-VP1, and EV71-VP2 in a varied tandem manner...
May 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28373042/-enterovirus-infection-during-pregnancy-underestimated-cause-of-fetal-and-neonatal-complications
#14
J Méreaux, O Picone, C Vauloup-Fellous, Z Khediri, A Benachi, L Mandelbrot, J-M Ayoubi
Enteroviruses are responsible for about one billion infections every year in the world. The clinical expression is in the vast majority asymptomatic cases (90%). Its consequences during pregnancy are rarely described. From the Medline database, we selected and analyzed 34 articles ranging from 1965 to 2015, to analyse the current knowledge of enterovirus infection consequences during pregnancy. We found that enterovirus infections may be the cause of fetal loss. The enterovirus infections during the 2nd and 3rd trimester may also lead to in utero fetal anomalies and death, but also to severe neonatal infections...
March 31, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28365283/-epidemiological-and-clinical-characteristics-of-infants-admitted-to-hospital-due-to-human-parechovirus-infections-a-prospective-study-in-spain
#15
Fernando Martín Del Valle, Cristina Calvo, Inés Martinez-Rienda, Amaia Cilla, María P Romero, Ana Isabel Menasalvas, Leticia Reis-Iglesias, Diana Roda, María J Pena, Nuria Rabella, María Del Mar Portugués de la Red, Gregoria Megías, Antonio Moreno-Docón, Almudena Otero, María Cabrerizo
INTRODUCTION: Human parechovirus (HPeV) is one of the recently described picornaviridae viruses that have been associated with fever of unknown origin (FUO), clinical sepsis, gastroenteritis, meningitis, or encephalitis in very young infants. The aim of this study is to describe the epidemiology and clinical features of these viruses. PATIENTS AND METHODS: A prospective multicentre 3-year study was conducted in 12 hospitals in Spain. Out of 850 specimens examined, 47 were positive (5...
March 29, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28250116/a-neonatal-murine-model-of-coxsackievirus-a6-infection-for-evaluation-of-antiviral-and-vaccine-efficacy
#16
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 A71 (EVA71) and coxsackievirus A16 (CVA16), are the primary etiological agents of HFMD; however, a third enterovirus A species, CVA6, has been recently associated with epidemic outbreaks. Study of the pathogenesis of CVA6 infection and development of antivirals and vaccines are hindered by a lack of appropriate animal models. We have developed and characterized a murine model of CVA6 infection that was employed to evaluate the antiviral activities of different drugs and the protective efficacies of CVA6-inactivated vaccines...
May 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28231269/a-mouse-model-of-paralytic-myelitis-caused-by-enterovirus-d68
#17
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
#18
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
#19
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
#20
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
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