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https://www.readbyqxmd.com/read/28443581/bocavirus-viremia-and-hepatitis-in-an-%C3%A4-mmunocompetent-childa
#1
Zeliha Haytoğlu, Oğuz Canan
BACKGROUND: So far, many studies have shown that Human Bocavirus (HBoV) is the main pathogen of the respiratory tract. In most studies about HBoV, detection of the virus were made from mainly respiratory samples obtained from the patients admitted to the hospital with acute respiratory tract infection. Until now, there is no study that proves the association between HBoV and hepatitis. HBoV viremia/DNAemia has been associated closely with acute primary infection and moderate-to-severe illness but, more detailed clinical data about HBoV dissemination are still unknown...
April 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28379530/comparative-diagnosis-of-human-bocavirus-1-respiratory-infection-by-mrna-rt-pcr-dna-quantitative-pcr-and-serology
#2
Man Xu, Benedict Arku, Tuomas Jartti, Janne Koskinen, Ville Peltola, Klaus Hedman, Maria Söderlund-Venermo
Background: Human bocavirus (HBoV) 1 can cause life-threatening respiratory tract infection in children. Diagnosing acute HBoV1 infection is challenging due to long-term airway persistence. We assessed whether messenger (m)RNA detection would correlate better than DNA detection, with acute HBoV1 infection. Methods: Paired sera of 121 children with acute wheezing were analyzed by serology. Quantitative (q)PCR and reverse-transcription (RT)-PCR were applied to nasopharyngeal swabs (NPS) of all acutely HBoV1-infected children and of non-acute controls...
April 4, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28373908/surveillance-for-respiratory-infectious-diseases-caused-by-6-common-viruses-in-a-recruit-training-site-in-the-northern-region-of-china
#3
Wei-Wei Chen, Wen Xu, Yang-Xin Xie, Yun-Hui Zhang, Dan Wu, Fu-Sheng Wang, Min Zhao
BACKGROUND: Recruit training sites are places with a high incidence of respiratory infectious diseases. Effective surveillance for acute respiratory infectious diseases in a recruit training site is an important way to prevent disease outbreaks. METHODS: Eight hundred recruits (722 males and 78 females) enlisted in autumn 2015 received a background survey within 24 h of settlement at the recruit training site, including their general personal information, vaccination history, mental status and clinical symptoms...
2017: Military Medical Research
https://www.readbyqxmd.com/read/28368491/viral-pathogen-detection-by-metagenomics-and-pan-viral-group-pcr-in-children-with-pneumonia-lacking-identifiable-etiology
#4
Robert Schlaberg, Krista Queen, Keith Simmon, Keith Tardif, Chris Stockmann, Steven Flygare, Brett Kennedy, Karl Voelkerding, Anna Bramley, Jing Zhang, Karen Eilbeck, Mark Yandell, Seema Jain, Andrew T Pavia, Suxiang Tong, Krow Ampofo
Background: Community-acquired pneumonia (CAP) is a leading cause of pediatric hospitalization. Pathogen identification fails in ~20% of children but is critical for optimal treatment and prevention of hospital-acquired infections. We used two broad-spectrum detection strategies to identify pathogens in test-negative children with CAP and asymptomatic controls. Methods: Nasopharyngeal/oropharyngeal (NP/OP) swabs from 70 children <5 years with CAP of unknown etiology and 90 asymptomatic controls were tested by next-generation sequencing (RNA-seq) and pan viral group (PVG) PCR for 19 viral families...
March 25, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28367738/comparison-of-the-fast-track-diagnostics-respiratory-21-and-seegene-allplex-multiplex-polymerase-chain-reaction-assays-for-the-detection-of-respiratory-viruses
#5
Kevin Barratt, Trevor P Anderson, Jennifer A Fahey, Lance C Jennings, Anja M Werno, David R Murdoch
BACKGROUND: Real-time multiplex PCR assays are increasingly used for respiratory virus detection, and offer automated analysis in a closed tube system, but they have the disadvantage of low-throughput due to multiplexing limitations. In this study, the established fast-track respiratory 21 assay (FTD) (fast-track diagnostics, Junglinster Luxembourg) was compared to the new Seegene Allplex assay (Seegene) (Seegene Inc. Seoul, Korea) which offers greater multiplexing as multiple targets can be detected in each fluorescence channel...
April 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28348774/latent-infection-of-human-bocavirus-accompanied-by-flare-of-chronic-cough-fatigue-and-episodes-of-viral-replication-in-an-immunocompetent-adult-patient-cologne-germany
#6
Wolfram Windisch, Monika Pieper, Inga Ziemele, Jürgen Rockstroh, Michael Brockmann, Oliver Schildgen, Verena Schildgen
INTRODUCTION: The human bocavirus (HBoV) is a parvovirus and is associated with mild to life-threatening acute or persisting respiratory infections, frequently accompanied by further pathogens. So far, there is limited knowledge on the mechanisms of persistence, and no reports on chronic infections or latency have been published so far. CASE PRESENTATION: An immunocompetent male patient suffers from a chronic HBoV1 infection, i.e. viral DNA was detected in both serum and bronchoalveolar lavage (BAL) for >5 months without co-infections and with respiratory symptoms resolved spontaneously while receiving symptomatic treatment with montelukast and corticosteroids...
August 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28331084/structural-insights-into-emerging-pediatric-pathogens-human-bocaparvoviruses
#7
Mario Mietzsch, Shweta Kailasan, Jamie Garrison, Maria Ilyas, Paul Chipman, Kalle Kantola, Mandy E Janssen, John Spear, Duncan Sousa, Robert McKenna, Kevin Brown, Maria Söderlund-Venermo, Timothy Baker, Mavis Agbandje-McKenna
Bocaparvoviruses are emerging pathogens of the Parvoviridae family. Human bocaviruses 1 (HBoV1) causes severe respiratory infections and HBoV2-4 gastrointestinal infections in young children. Recent reports of life threatening cases, lack of direct treatment or vaccination, and a limited understanding of their disease mechanisms demand the need to study these pathogens on a molecular and structural level for the development of therapeutics. Towards this end, the capsid structures of HBoV1, HBoV3, and HBoV4 were determined to 2...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28306724/respiratory-dna-viruses-are-undetectable-in-nasopharyngeal-secretions-from-adenotonsillectomized-children
#8
Ronaldo Bragança Martins, Lucas Penna Rocha, Mirela Moreira Prates, Talita Bianca Gagliardi, Balduino Biasoli, Marcelo Junqueira Leite, Guilherme Buzatto, Miguel Angelo Hyppolito, Davi Casale Aragon, Edwin Tamashiro, Fabiana Cardoso Pereira Valera, Eurico Arruda, Wilma Terezinha Anselmo-Lima
Respiratory viruses are frequently detected in association with chronic tonsillar hypertrophy in the absence of symptoms of acute respiratory infection (ARI). The present analysis was done in follow-up to a previous clinical study done by this same group. Nasopharyngeal washes (NPWs) were obtained from 83 of 120 individuals at variable times post adenotonsillectomy, in the absence of ARI symptoms. A look back at virus detection results in NPWs from the same 83 individuals at the time of tonsillectomy revealed that 73...
2017: PloS One
https://www.readbyqxmd.com/read/28302206/-relationship-between-viral-load-of-human-bocavirus-and-clinical-characteristics-in-children-with-acute-lower-respiratory-tract-infection
#9
Xiao-Fang Ding, Bing Zhang, Li-Li Zhong, Le-Yun Xie, Ni-Guang Xiao
OBJECTIVE: To investigate the prevalence of human bocavirus (HBoV) in children with acute lower respiratory tract infection and to explore the relationship between the viral load of HBoV and the clinical characteristics of acute lower respiratory tract infection in children. METHODS: A total of 1 554 nasopharyngeal aspirates from children who were hospitalized due to acute lower respiratory tract infection between March 2011 and March 2014 were collected. Quantitative real-time PCR was used to detect 12 RNA and 2 DNA viruses, adenovirus (ADV) and HBoV, and to measure the viral load of HBoV in HBoV-positive children...
March 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28301570/human-metapnuemovirus-infections-in-hospitalized-children-and-comparison-with-other-respiratory-viruses-2005-2014-prospective-study
#10
María Luz García-García, Cristina Calvo, Cristina Rey, Beatriz Díaz, Maria Del Mar Molinero, Francisco Pozo, Inmaculada Casas
BACKGROUND: Human metapneumovirus (HMPV) has an important etiological role in acute lower respiratory infections in children under five years. Our objectives were to estimate the relative contribution of HMPV to hospitalization in children with acute respiratory infection, to define the clinical and epidemiological features of HMPV single and multiple infections, and to compare HMPV infections with respiratory syncytial virus (HRSV), rhinovirus (HRV), adenovirus and human bocavirus infections in the same population...
2017: PloS One
https://www.readbyqxmd.com/read/28215586/role-of-human-bocavirus-in-idiopathic-pulmonary-fibrosis
#11
LETTER
Wolfram Windisch, Verena Schildgen, Oliver Schildgen
No abstract text is available yet for this article.
February 17, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28198551/prevalence-and-clinical-profile-of-human-bocavirus-in-children-with-acute-gastroenteritis-in-chengdu-west-china-2012-2013
#12
Tao Zhou, Yuhang Chen, Jiayi Chen, Pengwei Hu, Tianli Zheng, Xin Xu, Xiaofang Pei
Viral acute gastroenteritis (AGE) is a major cause of mortality in childhood and leads to hospitalization in developing countries. Human bocavirus (HBoV) is a newly described virus associated with gastroenteritis. However, little is known about the clinical and epidemiological profile of human bocavirus (HBoV) in pediatric population in Chengdu, China. Between January 2012 and December 2013, 346 fecal samples from children admitted to hospital with acute gastroenteritis were tested for the presence of HBoV as well as other gastroenteritis viruses...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28186546/case-control-assessment-of-the-roles-of-noroviruses-human-bocaviruses-2-3-and-4-and-novel-polyomaviruses-and-astroviruses-in-acute-childhood-diarrhea
#13
Rimma Melamed, Gregory A Storch, Lori R Holtz, Eileen J Klein, Brittany Herrin, Phillip I Tarr, Donna M Denno
No abstract text is available yet for this article.
February 10, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28178324/correction-b-cell-responses-to-human-bocaviruses-1-4-new-insights-from-a-childhood-follow-up-study
#14
Kalle Kantola, Lea Hedman, Laura Tanner, Ville Simell, Marjaana Mäkinen, Juulia Partanen, Mohammadreza Sadeghi, Riitta Veijola, Mikael Knip, Jorma Ilonen, Heikki Hyöty, Jorma Toppari, Olli Simell, Klaus Hedman, Maria Söderlund-Venermo
[This corrects the article DOI: 10.1371/journal.pone.0139096.].
2017: PloS One
https://www.readbyqxmd.com/read/28160215/the-impact-of-the-extreme-amazonian-flood-season-on-the-incidence-of-viral-gastroenteritis-cases
#15
Carmen Baur Vieira, Adriana de Abreu Corrêa, Michele Silva de Jesus, Sérgio Luiz Bessa Luz, Peter Wyn-Jones, David Kay, Mônica Simões Rocha, Marize Pereira Miagostovich
During the Amazonian flood season in 2012, the Negro River reached its highest level in 110 years, submerging residential and commercial areas which appeared associated with an elevation in the observed gastroenteritis cases in the city of Manaus. The aim of this study was to evaluate the microbiological water quality of the Negro River basin during this extreme flood to investigate this apparent association between the illness cases and the population exposed to the contaminated waters. Forty water samples were collected and analysed for classic and emerging enteric viruses...
February 3, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28144057/respiratory-viruses-in-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#16
Parvaiz A Koul, Hyder Mir, Shabir Akram, Varsha Potdar, Mandeep S Chadha
OBJECTIVE: Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) cause significant morbidity, mortality, and an inexorable decline of lung function. Data from developed countries have shown viruses to be important causes of AECOPD, but data from developing countries like India are scant. We set out to determine the contribution of viruses in the causation of hospitalized patients with AECOPD. METHODS: Twin nasopharyngeal/oropharyngeal swabs collected from 233 patients admitted with an acute AECOPD and tested for respiratory viruses including respiratory syncytial virus A and B, parainfluenza were (PIV) 1, 2, 3, and 4, human metapneumovirus (hMPV) A and B, influenza A and B, enterovirus, corona NL65, OC43, and 229E viruses, adenovirus 2 and 4, rhinovirus, and bocavirus, by duplex real time reverse-transcription polymerase chain reaction (qRT-PCR) using CDC approved primers and probes...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28132571/the-diagnosis-and-management-of-respiratory-viral-infections-in-cystic-fibrosis
#17
William Flight, Andrew Jones
Respiratory viruses, such as those that cause influenza and the common cold, are a regular feature of life for the entire human population. Among people with CF, these viruses are associated with prolonged respiratory illness and show a clear association with pulmonary exacerbations which in turn are associated with lung function decline and risk of death. Human rhinovirus is the most commonly encountered respiratory viral pathogen in CF although adenovirus, bocavirus, coronavirus, influenza, parainfluenza, metapneumovirus and respiratory syncytial virus are all also responsible for infections in this population...
February 3, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28122984/parvovirus-expresses-a-small-noncoding-rna-that-plays-an-essential-role-in-virus-replication
#18
Zekun Wang, Weiran Shen, Fang Cheng, Xuefeng Deng, John F Engelhardt, Ziying Yan, Jianming Qiu
Human bocavirus 1 (HBoV1) belongs to the species Primate bocaparvovirus of the genus Bocaparvovirus of the Parvoviridae family. HBoV1 causes acute respiratory tract infections in young children and has a selective tropism for the apical surface of well-differentiated human airway epithelia (HAE). In this study, we identified an additional HBoV1 gene, bocavirus-transcribed small noncoding RNA (BocaSR), within the 3' noncoding region (nucleotides [nt] 5199 to 5338) of the viral genome of positive sense. BocaSR is transcribed by RNA polymerase III (Pol III) from an intragenic promoter at levels similar to that of the capsid protein-coding mRNA and is essential for replication of the viral DNA in both transfected HEK293 and infected HAE cells...
April 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28115263/investigation-of-viral-infection-in-idiopathic-pulmonary-fibrosis-among-iranian-patients-in-tehran
#19
Pouya Moradi, Hossein Keyvani, Seyed-Ali Javad Mousavi, Mohammad Hadi Karbalaie Niya, Maryam Esghaei, Farah Bokharaei-Salim, Angila Ataei-Pirkooh, Seyed Hamidreza Monavari
AIM OF THE STUDY: Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease, which can be lethal with chronic complications. Viral infections may be associated with IPF and other fibrotic lung diseases. In the present study, we investigate for the first time in Iran the related viral etiology of IPF in order to detect three respiratory viruses; human adenovirus, enterovirus and bocavirus. MATERIALS AND METHODS: In this cross-sectional study which was supported by Iran University of Medical Sciences, Tehran, Iran...
March 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28090592/the-first-genome-sequences-of-human-bocaviruses-from-vietnam
#20
Tran Tan Thanh, Hoang Minh Tu Van, Nguyen Thi Thu Hong, Le Nguyen Truc Nhu, Nguyen To Anh, Ha Manh Tuan, Ho Van Hien, Nguyen Manh Tuong, Trinh Trung Kien, Truong Huu Khanh, Le Nguyen Thanh Nhan, Nguyen Thanh Hung, Nguyen Van Vinh Chau, Guy Thwaites, H Rogier van Doorn, Le Van Tan
As part of an ongoing effort to generate complete genome sequences of hand, foot and mouth disease-causing enteroviruses directly from clinical specimens, two complete coding sequences and two partial genomic sequences of human bocavirus 1 (n=3) and 2 (n=1) were co-amplified and sequenced, representing the first genome sequences of human bocaviruses from Vietnam. The sequences may aid future study aiming at understanding the evolution of the pathogen.
November 16, 2016: Wellcome Open Research
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