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https://www.readbyqxmd.com/read/29776940/successful-treatment-of-fulminant-neonatal-enteroviral-myocarditis-in-monochorionic-diamniotic-twins-with-cardiopulmonary-support-intravenous-immunoglobulin-and-pocapavir
#1
Shahnawaz M Amdani, Hannah S Kim, Anthony Orvedahl, Audrey Odom John, Ahmed Said, Kathleen Simpson
Neonatal cardiogenic shock most commonly occurs due to critical congenital heart disease, sepsis, metabolic disorder or arrhythmias. In particular, enterovirus infections are common in the neonatal period, and patients can present with fulminant myocarditis. Early recognition is imperative due to its high morbidity and mortality without prompt and aggressive treatment. We present the successful treatment of fulminant neonatal enteroviral myocarditis in a pair of monochorionic diamniotic twins with cardiopulmonary support, intravenous immunoglobulin and pocapavir, an enteroviral capsid inhibitor...
May 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29765110/mast-cells-contribute-to-enterovirus-71-infection-induced-pulmonary-edema-in-neonatal-mice
#2
Yuefei Jin, Chao Zhang, Hui Wang, Guangyuan Zhou, Xiangpeng Wang, Rongguang Zhang, Shuaiyin Chen, Jingchao Ren, Lu Chen, Dejian Dang, Peng Zhang, Yuanlin Xi, Weidong Wu, Weiguo Zhang, Guangcai Duan
Enterovirus (EV) 71 infection has been widely acknowledged as the leading cause of severe hand, foot and mouth disease (HFMD), which may rapidly lead to fatal pulmonary edema. In this study, we established a mouse model for EV71 infection exhibiting high incidence of severe symptoms with pulmonary edema. Mast cells (MCs) accumulation, activation and allergic inflammation were found in the brains, lungs and skeletal muscle of mice after EV71 infection, especially in the lungs of mice. Levels of histamine, platelet-activating factor (PAF), interleukin (IL)-4, IL-5, IL-13, tumor necrosis factor-α (TNF-α), nitric oxide (NO), endocrine gland-derived vascular endothelial growth factor (EG-VEGF) and noradrenaline (NA) were increased in EV71-infected lungs...
May 15, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29661198/adverse-effects-of-maternal-enterovirus-infection-on-the-pregnancy-outcome-a-prospective-and-retrospective-pilot-study
#3
Z Khediri, C Vauloup-Fellous, A Benachi, J M Ayoubi, L Mandelbrot, O Picone
BACKGROUND: Enteroviruses account for about one billion infections worldwide each year, the majority remain asymptomatic. Data on enterovirus infections during pregnancy appear to be very rare. Several cases have been reported in the literature of fetal and neonatal complications attributed to these viruses, but prospective data on these infections during pregnancy are not available. OBJECTIVE: To estimate the prevalence of enterovirus infections in febrile syndromes in pregnant women, and in case of in utero fetal death (IUFD)...
April 16, 2018: Virology Journal
https://www.readbyqxmd.com/read/29626210/the-life-cycle-of-non-polio-enteroviruses-and-how-to-target-it
#4
REVIEW
Jim Baggen, Hendrik Jan Thibaut, Jeroen R P M Strating, Frank J M van Kuppeveld
The genus Enterovirus (EV) of the family Picornaviridae includes poliovirus, coxsackieviruses, echoviruses, numbered enteroviruses and rhinoviruses. These diverse viruses cause a variety of diseases, including non-specific febrile illness, hand-foot-and-mouth disease, neonatal sepsis-like disease, encephalitis, paralysis and respiratory diseases. In recent years, several non-polio enteroviruses (NPEVs) have emerged as serious public health concerns. These include EV-A71, which has caused epidemics of hand-foot-and-mouth disease in Southeast Asia, and EV-D68, which recently caused a large outbreak of severe lower respiratory tract disease in North America...
April 6, 2018: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/29563294/divergent-pathogenic-properties-of-circulating-coxsackievirus-a6-associated-with-emerging-hfmd
#5
Shao-Hua Wang, Ao Wang, Pan-Pan Liu, Wen-Yan Zhang, Juan Du, Shuang Xu, Guan-Chen Liu, Bai-Song Zheng, Chen Huan, Ke Zhao, Xiao-Fang Yu
Coxsackievirus A6 (CV-A6) is an emerging pathogen associated with hand, foot, and mouth disease (HFMD). Its genetic characterization and pathogenic properties are largely unknown. Here, we report 39 circulating CV-A6 strains isolated in 2013 from HFMD patients in Northeast China. Three major clusters of CV-A6 were identified and related to CV-A6 mostly from Shanghai, indicating that domestic CV-A6 strains were responsible for HFMD emerging in Northeast China. Four full-length CV-A6 genomes representing each cluster were sequenced and analyzed further...
March 21, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29538464/congenital-cytomegalovirus-parvovirus-and-enterovirus-infection-in-mozambican-newborns-at-birth-a-cross-sectional-survey
#6
Lola Madrid, Rosauro Varo, Sonia Maculuve, Tacilta Nhampossa, Carmen Muñoz-Almagro, Enrique J Calderón, Cristina Esteva, Carla Carrilho, Mamudo Ismail, Begoña Vieites, Vicente Friaza, María Del Carmen Lozano-Dominguez, Clara Menéndez, Quique Bassat
BACKGROUND: Congenital cytomegalovirus (cCMV) infection is the most prevalent congenital infection acquired worldwide, with higher incidence in developing countries and among HIV-exposed children. Less is known regarding vertical transmission of parvovirus B19 (B19V) and enterovirus (EV). We aimed to assess the prevalence of CMV, B19V and EV vertical transmission and compare results of screening of congenital CMV obtained from two different specimens in a semirural Mozambican maternity...
2018: PloS One
https://www.readbyqxmd.com/read/29526382/neonatal-nonpolio-enterovirus-and-parechovirus-infections
#7
REVIEW
Nada Harik, Roberta L DeBiasi
Nonpolio enteroviruses and parechoviruses are frequent causes of neonatal infection. Clinical manifestations of infection range from asymptomatic infection to mild infection without sequelae to septic shock with muiltiorgan failure. Neonates with clinically apparent infection typically have mothers and/or other contacts with recent symptoms consistent with a viral illness. Severe neonatal infection with nonpolio enterovirus or parechovirus cannot be differentiated clinically from serious bacterial infection...
April 2018: Seminars in Perinatology
https://www.readbyqxmd.com/read/29447290/a-neonatal-murine-model-for-evaluation-of-enterovirus-e-hy12-virus-infection-and-pathogenicity
#8
Xiaochun Gai, Qun Zhang, Haibing Lu, Zhanqing Yang, Lisai Zhu, Xin Li, Xinping Wang
BACKGROUNDS: HY12 viruses are enteroviruses recently isolated from cattle characterized by severe respiratory and digestive disease with high morbidity and mortality in China. While the viruses exhibit unique biological and molecular characters distinct from known enterovirus E, the pathogenicity and viral pathogenesis remains largely unknown. METHODS: Neonatal mice of Balb/C, ICR, and Kunming strain are infected with HY12 to determine the susceptible mouse strain...
2018: PloS One
https://www.readbyqxmd.com/read/29425680/new-coxsackievirus-2a-pro-and-3c-pro-protease-antibodies-for-virus-detection-and-discovery-of-pathogenic-mechanisms
#9
Olli H Laitinen, Emma Svedin, Sebastian Kapell, Minna M Hankaniemi, Pär G Larsson, Erna Domsgen, Virginia M Stone, Juha A E Määttä, Heikki Hyöty, Vesa P Hytönen, Malin Flodström-Tullberg
Enteroviruses (EVs), such as the Coxsackie B-viruses (CVBs), are common human pathogens, which can cause severe diseases including meningitis, myocarditis and neonatal sepsis. EVs encode two proteases (2Apro and 3Cpro ), which perform the proteolytic cleavage of the CVB polyprotein and also cleave host cell proteins to facilitate viral replication. The 2Apro cause direct damage to the infected heart and tools to investigate 2Apro and 3Cpro expression may contribute new knowledge on virus-induced pathologies...
May 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29389824/necrotizing-enterocolitis-cases-associated-with-nosocomial-enterovirus-transmission-in-a-neonatal-unit
#10
Alidjinou Enagnon Kazali, Lazrek Mouna, Schuffenecker Isabelle, Pindi Béatrice, Lapeyre Fabrice, Kacet Nadine, Dewilde Anny, Engelmann Ilka, Hober Didier
Infectious agents including viruses are thought to play a role in the pathogenesis of necrotizing enterocolitis (NEC), a well-known gastrointestinal emergency in newborns. Enteroviruses are common pathogens in neonates and have been associated with outbreaks in neonatal units. Enterovirus associated NEC has been described in three preterms. Spatio-temporal and molecular analyses have provided evidence of nosocomial transmission.
January 31, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29385753/a-mouse-model-of-enterovirus-d68-infection-for-assessment-of-the-efficacy-of-inactivated-vaccine
#11
Chao Zhang, Xueyang Zhang, Wenlong Dai, Qingwei Liu, Pei Xiong, Shuxia Wang, Lanlan Geng, Sitang Gong, Zhong Huang
In recent years, enterovirus D68 (EVD68) has been reported increasingly to be associated with severe respiratory tract infections and acute flaccid myelitis (AFM) in children all over the world. Yet, no effective vaccines or antiviral drugs are currently available for EVD68. Although several experimental animal models have been developed, immunogenicity and protective efficacy of inactivated EVD68 vaccines has not been fully evaluated. To promote the development of vaccines, we established an Institute of Cancer Research (ICR) suckling mouse model of EVD68 infection in this study...
January 30, 2018: Viruses
https://www.readbyqxmd.com/read/29384053/viral-infections-in-pregnancy-a-focus-on-ebola-virus
#12
Nicole S Olgun
During gestation, the immune response of the placenta to viruses and other pathogens plays an important role in determining a pregnant woman's vulnerability toward infectious diseases. Located at the maternal- fetal interface, trophoblast cells serve to minimize the spread of viruses between the host and developing fetus through an intricate system of innate antiviral immune signaling. Adverse pregnancy outcomes, ranging from learning disabilities to preterm birth and fetal death, are all documented results of a viral breach in the placental barrier...
January 30, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29323105/enterovirus-d68-virus-like-particles-expressed-in-pichia-pastoris-potently-induce-neutralizing-antibody-responses-and-confer-protection-against-lethal-viral-infection-in-mice
#13
Chao Zhang, Xueyang Zhang, Wei Zhang, Wenlong Dai, Jing Xie, Liping Ye, Hongli Wang, Huan Chen, Qingwei Liu, Sitang Gong, Lanlan Geng, Zhong Huang
Enterovirus D68 (EV-D68) has been increasingly associated with severe respiratory illness and neurological complications in children worldwide. However, no vaccine is currently available to prevent EV-D68 infection. In the present study, we investigated the possibility of developing a virus-like particle (VLP)-based EV-D68 vaccine. We found that co-expression of the P1 precursor and 3CD protease of EV-D68 in Pichia pastoris yeast resulted in the generation of EV-D68 VLPs, which were composed of processed VP0, VP1, and VP3 capsid proteins and were visualized as ~30 nm spherical particles...
January 10, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29295756/a-virus-like-particle-vaccine-confers-protection-against-enterovirus-d68-lethal-challenge-in-mice
#14
Wenlong Dai, Chao Zhang, Xueyang Zhang, Pei Xiong, Qingwei Liu, Sitang Gong, Lanlan Geng, Dongming Zhou, Zhong Huang
Enterovirus D68 (EV-D68) is increasingly associated with severe acute respiratory infection and acute flaccid myelitis (AFM) in children around the world. However, neither vaccines nor therapeutic drugs are available for EV-D68. Here we report the development of a virus-like particle (VLP) based experimental EV-D68 vaccine. We found that EV-D68 VLPs could be successfully generated in insect cells infected with a recombinant baculovirus co-expressing the P1 precursor and 3CD protease of EV-D68. Biochemical and electron microscopic analyses revealed that EV-D68 VLPs were composed of VP0, VP1, and VP3 capsid proteins derived from precursor P1 and were visualized as spherical particles of ∼30 nm in diameter...
January 29, 2018: Vaccine
https://www.readbyqxmd.com/read/29290098/rotavirus-infection-as-a-frequent-cause-of-neonatal-fever
#15
Ha-Na Kang, Hyun Kyung Park, Hyun-Ju Lee, Jin-Hwa Moon, Jae Won Oh, Chang-Ryul Kim
BACKGROUND: Fever rather than diarrhea or vomiting was the most common symptom of neonatal rotavirus (RV) infection in our previous study. We investigated whether RV infection is a major cause of neonatal fever and compared the clinical characteristics of bacterial infection, viral infection and unknown causes of neonatal fever. METHOD: We reviewed the electronic medical records of 48 newborns aged ≤28 days who were admitted to the Special Care Nursery of Hanyang University Guri Hospital for fever (≥38°C) from 2005 to 2009...
April 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29282065/pulmonary-edema-following-central-nervous-system-lesions-induced-by-a-non-mouse-adapted-ev71-strain-in-neonatal-balb-c-mice
#16
Yuefei Jin, Chao Zhang, Rongguang Zhang, Jingchao Ren, Shuaiyin Chen, Meili Sui, Guangyuan Zhou, Dejian Dang, Jiehui Zhu, Huifen Feng, Yuanlin Xi, Haiyan Yang, Guangcai Duan
BACKGROUND: Enterovirus (EV) infection has been a serious health issue in Asia-Pacific region. It has been indicated that the occurrence of fatal hand foot and mouth disease (HFMD) cases following EV71 infection is mainly attributed to pulmonary edema. However, the development of pulmonary disorders after EV71 infection remains largely unknown. To establish an EV71-infected animal model and further explore the underlying association of central nervous system (CNS) invasion with pulmonary edema, we isolated a clinical source EV71 strain (ZZ1350) from a severe case in Henan Province...
December 28, 2017: Virology Journal
https://www.readbyqxmd.com/read/29205682/sibling-visits-and-viral-infection-in-the-neonatal-intensive-care-unit
#17
Yuho Horikoshi, Kaoru Okazaki, Shigeko Miyokawa, Kazue Kinoshita, Hiroshi Higuchi, Junichi Suwa, Yuta Aizawa, Kahoru Fukuoka
BACKGROUND: Sibling visits to the neonatal intensive care unit (NICU) are a part of family-centered care, which is now being increasingly endorsed as a positive development in patient care. Sibling visits, however, pose a risk of viral infection, and hence many NICU in Japan impose strict limits on the practice. The aim of this study was therefore to assess whether sibling visits to the NICU are related to an increase in the nosocomial viral infection rate. METHODS: This retrospective study was conducted between April 2012 and March 2017 at Tokyo Metropolitan Children's Medical Center in Japan...
February 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29203935/viral-enteritis-in-calves
#18
REVIEW
Diego E Gomez, J Scott Weese
A complex community of bacteria, viruses, fungi, protists, and other microorganisms inhabit the gastrointestinal tract of calves and play important roles in gut health and disease. The viral component of the microbiome (the virome) is receiving increasing attention for its role in neonatal calf diarrhea (NCD). Rotavirus and coronavirus have for a long time been associated with NCD and commercial vaccines have been produced against these agents. Recently, several other viruses which may play a role in diarrhea have been discovered in calf fecal samples, mostly by sequence-based methods...
December 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
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
#19
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...
December 19, 2017: Vaccine
https://www.readbyqxmd.com/read/29115952/no-evidence-of-enteric-viral-involvement-in-the-new-neonatal-porcine-diarrhoea-syndrome-in-danish-pigs
#20
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
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