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rhinovirus infections in Children

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https://www.readbyqxmd.com/read/28077283/aetiology-of-febrile-pharyngitis-in-children-potential-of-myxovirus-resistance-protein-a-mxa-as-a-biomarker-of-viral-infection
#1
Lauri Ivaska, Jussi Niemelä, Johanna Lempainen, Riikka Österback, Matti Waris, Tytti Vuorinen, Jukka Hytönen, Kaisu Rantakokko-Jalava, Ville Peltola
OBJECTIVES: Besides group A streptococcus (GAS), microbial causes of pharyngitis in children are not well known. We aimed to document the viral and bacterial aetiology of pharyngitis and to assess the pathogenic role of viruses by determining the myxovirus resistance protein A (MxA) in the blood as a marker of interferon response. METHODS: In this prospective observational study, throat swabs and blood samples were collected from children (age 1-16 years) presenting to the emergency department with febrile pharyngitis...
January 7, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28040689/burden-of-healthcare-associated-viral-respiratory-infections-in-children-s-hospitals
#2
Caroline Quach, Rita Shah, Lorry G Rubin
OBJECTIVE: Although healthcare-associated (HA) viral respiratory infections (VRIs) are common in pediatrics, no benchmark for comparison exists. We aimed to determine, compare, and assess determinants of unit-specific HA-VRI incidence rates in 2 children's hospitals. METHODS: This study was a retrospective comparison of prospective cohorts. The Montreal Children's Hospital and the Cohen Children's Medical Center of New York perform prospective surveillance for HA-VRI using standardized definitions that require the presence of symptoms compatible with VRI and virus detection...
December 30, 2016: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28028115/epidemiologic-analysis-of-respiratory-viral-infections-mainly-in-hospitalized-children-and-adults-in-a-midwest-university-medical-center-after-the-implementation-of-a-14-virus-multiplex-nucleic-acid-amplification-test
#3
Sophie Arbefeville, Patricia Ferrieri
OBJECTIVES: To investigate the etiology of viral respiratory tract infections mainly in hospitalized children and adults over a 12-month consecutive period after implementation of a 14-virus multiplex nucleic acid amplification test. METHODS: From January 2014 to January 2015, a total of 2,237 respiratory samples were analyzed with the US Food and Drug Administration-cleared eSensor Respiratory Viral Panel (GenMark Diagnostics, Carlsbad, CA). RESULTS: Of the 2,237 specimens tested, 788 specimens were positive for at least one virus, giving a positivity rate of 35...
December 27, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28027280/clinical-and-virus-surveillance-after-the-first-wheezing-episode-special-reference-to-rhinovirus-a-and-c-species
#4
Riitta Turunen, Tytti Vuorinen, Yury Bochkov, James Gern, Tuomas Jartti
BACKGROUND: Susceptibility to rhinovirus (RV) induced early wheezing episode has been recognized as an important risk factor for asthma but the data on different RV species are limited. Our aim was to investigate the risk for recurrences in first-time wheezing children with special focus on RV species. METHODS: First-time wheezing children (88/23 in-/outpatients) were prospectively followed at 2-week, 2-month and 12-month time-points, and at first recurrence within 12 months...
December 23, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28024227/the-role-of-outdoor-fungi-on-asthma-hospital-admissions-in-children-and-adolescents-a-5-year-time-stratified-case-crossover-analysis
#5
Rachel Tham, Constance H Katelaris, Don Vicendese, Shyamali C Dharmage, Adrian J Lowe, Gayan Bowatte, Philip Taylor, Pamela Burton, Michael J Abramson, Bircan Erbas
BACKGROUND: Some fungal spores can trigger asthma exacerbation but knowledge of which outdoor fungal spores contribute to asthma hospitalisation is limited. OBJECTIVES: To examine the role of outdoor fungal spores in child and adolescent asthma hospitalisations. METHODS: We conducted a bi-directional time-stratified case-crossover study of child and adolescent asthma hospitalisations over 5 years. Conditional logistic regression assessed the role of 20 fungi taxa (Same day [L0] and lagged [L1-3]) adjusted for maximum temperature, humidity and grass pollen...
December 23, 2016: Environmental Research
https://www.readbyqxmd.com/read/28018433/viral-agents-causing-acute-respiratory-infections-in-children-under-five-a-study-from-eastern-india
#6
Pravakar Mishra, Lipika Nayak, Rashmi Ranjan Das, Bhagirathi Dwibedi, Amitabh Singh
Background. Acute respiratory infections (ARIs) are important cause of mortality and morbidity in children under five in developing country. Methods. This observational study was conducted over two-year period in a tertiary care teaching hospital of Eastern India. Nasal and throat swabs were collected, transported to the laboratory at 2-8°C in viral transport media, and then processed for detection of viruses using mono/multiplex real-time polymerase chain reaction. Results. A total of 300 children aged 2-60 months with ARIs were included...
2016: International Journal of Pediatrics
https://www.readbyqxmd.com/read/27997520/polymorphisms-of-mannose-binding-lectin-and-toll-like-receptors-2-3-4-7-and-8-and-the-risk-of-respiratory-infections-and-acute-otitis-media-in-children
#7
Laura Toivonen, Juho Vuononvirta, Jussi Mertsola, Matti Waris, Qiushui He, Ville Peltola
BACKGROUND: Mannose-binding lectin (MBL) and toll-like receptors (TLR) are important components of the innate immune system. We assessed the susceptibility of children with genetic variants in these factors to respiratory infections, rhinovirus infections, and acute otitis media. METHODS: In a prospective cohort study, blood samples from 381 Finnish children were analyzed for polymorphisms in MBL2 at codons 52, 54, and 57, TLR2 Arg753Gln, TLR3 Leu412Phe, TLR4 Asp299Gly, TLR7 Gln11Leu, and TLR8 Leu651Leu...
December 15, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27992067/the-role-of-rhinoviruses-is-over-estimated-in-the-aetiology-of-community-acquired-pneumonia-in-children
#8
Matti Korppi
Until the 1990s, viral cultures, antigen detection and antibody assays were used to diagnose virus-specific respiratory infections (1). The introduction of polymerase chain reaction (PCR) increased the number of viral findings, revealed that multiple viral aetiological findings are common, confirmed that viruses are often found in non-symptomatic children and even detected new viruses (2-4). Rhinoviruses were discovered in 1956, but the slow, non-sensitive viral culture was the only diagnostic method for decades and the development of antigen or antibody assays did not help, as there are now more than 100 rhinovirus serotypes...
December 19, 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/27936016/a-tool-for-investigating-asthma-and-copd-exacerbations-a-newly-manufactured-and-well-characterised-gmp-wild-type-human-rhinovirus-for-use-in-the-human-viral-challenge-model
#9
Daniel J Fullen, Bryan Murray, Julie Mori, Andrew Catchpole, Daryl W Borley, Edward J Murray, Ganesh Balaratnam, Anthony Gilbert, Alex Mann, Fiona Hughes, Rob Lambkin-Williams
BACKGROUND: Human Rhinovirus infection is an important precursor to asthma and chronic obstructive pulmonary disease exacerbations and the Human Viral Challenge model may provide a powerful tool in studying these and other chronic respiratory diseases. In this study we have reported the production and human characterisation of a new Wild-Type HRV-16 challenge virus produced specifically for this purpose. METHODS AND STOCK DEVELOPMENT: A HRV-16 isolate from an 18 year old experimentally infected healthy female volunteer (University of Virginia Children's Hospital, USA) was obtained with appropriate medical history and consent...
2016: PloS One
https://www.readbyqxmd.com/read/27927871/severity-of-respiratory-syncytial-virus-lower-respiratory-tract-infection-with-viral-coinfection-in-hiv-uninfected-children
#10
Natalie I Mazur, Louis Bont, Adam L Cohen, Cheryl Cohen, Anne von Gottberg, Michelle J Groome, Orienka Hellferscee, Kerstin Klipstein-Grobusch, Omphile Tschegofatso Mekgoe, Fathima Naby, Jocelyn Moyes, Stefano Tempia, Florette K Treurnicht, Marietje Venter, Sibongile Walaza, Nicole Wolter, Shabir A Madhi
BACKGROUND: Molecular diagnostics enable sensitive detection of respiratory viruses but their clinical significance remains unclear in pediatric lower respiratory tract infections (LRTI). We aimed to determine whether viral coinfections increased life-threatening disease in a large cohort. METHODS: Molecular testing was performed for respiratory viruses in nasopharyngeal aspirates collected from children aged <5 years within 24 hours of hospital admission during sentinel surveillance for Severe Acute Respiratory Illness (SARI) hospitalisation conducted in South Africa during February 2009-December 2013...
December 7, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27916571/impact-and-seasonality-of-human-rhinovirus-infection-in-hospitalized-patients-for-two-consecutive-years
#11
Jaqueline Leotte, Hygor Trombetta, Heloisa Z Faggion, Bernardo M Almeida, Meri B Nogueira, Luine R Vidal, Sonia M Raboni
OBJECTIVES: To report epidemiological features, clinical characteristics, and outcomes of human rhinovirus (HRV) infections in comparison with other community acquired respiratory virus (CRV) infections in patients hospitalized for two consecutive years. METHODS: This was a cross-sectional study. Clinical, epidemiological, and laboratory data of patients hospitalized with acute respiratory syndrome in a tertiary care hospital from 2012 to 2013 were reviewed. RESULTS: HRV was the most common CRV observed (36%, 162/444) and was present in the majority of viral co-detections (69%, 88/128), mainly in association with human enterovirus (45%)...
December 2, 2016: Jornal de Pediatria
https://www.readbyqxmd.com/read/27914475/an-observational-study-of-febrile-seizures-the-importance-of-viral-infection-and-immunization
#12
Joshua R Francis, Peter Richmond, Christine Robins, Katie Lindsay, Avram Levy, Paul V Effler, Meredith Borland, Christopher C Blyth
BACKGROUND: Febrile seizures are common in young children. Annual peaks in incidence mirror increased respiratory virus activity during winter. Limited virological data are available using modern diagnostic techniques for children with febrile seizures. We aimed to determine the frequency of detection of specific viral pathogens in children with febrile seizures, to describe risk factors including recent vaccination and clinical features associated with specific etiologies. METHODS: An observational study was performed...
December 3, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27904883/interactions-of-respiratory-viruses-and-the-nasal-microbiota-during-the-first-year-of-life-in-healthy-infants
#13
Insa Korten, Moana Mika, Shkipe Klenja, Elisabeth Kieninger, Ines Mack, Maria Teresa Barbani, Meri Gorgievski, Urs Frey, Markus Hilty, Philipp Latzin
Traditional culture techniques have shown that increased bacterial colonization is associated with viral colonization; however, the influence of viral colonization on the whole microbiota composition is less clear. We thus aimed to understand the interaction of viral infections and the nasal microbiota in early life to appraise their roles in disease development. Thirty-two healthy, unselected infants were included in this prospective longitudinal cohort study within the first year of life. Biweekly nasal swabs (n = 559) were taken, and the microbiota was analyzed by 16S rRNA pyrosequencing, and 10 different viruses and 2 atypical bacteria were characterized by real-time PCR (combination of seven duplex samples)...
November 2016: MSphere
https://www.readbyqxmd.com/read/27886635/multiplex-pcr-reveals-that-viruses-are-more-frequent-than-bacteria-in-children-with-cystic-fibrosis
#14
Sílvia Miró-Cañís, Sílvia Capilla-Rubio, Laura Marzo-Checa, Dionisia Fontanals-Aymerich, Isabel Sanfeliu-Sala, Mateu Espasa-Soley, Oscar Asensio-de-la-Cruz
BACKGROUND: Cystic fibrosis is a degenerative disease characterized by progressive epithelial secretory gland dysfunction associated with repeated respiratory infections. Bacterial infections are very frequent in children with cystic fibrosis, but because rapid METHODS: for screening for the wide variety of potentially involved viruses were unavailable until recently, the frequency of viral presence is unknown. Multiplex PCR enables screening for many viruses involved in respiratory infections...
January 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27883373/clinical-impact-of-mixed-respiratory-viral-infection-in-children-with-adenoviral-infection
#15
Hyun Jun Lee, Young Eun Seo, Seung Beom Han, Dae Chul Jeong, Jin Han Kang
BACKGROUND: Although adenovirus (ADV) infection occurs steadily all year round in Korea and the identification of respiratory viral coinfections has been increasing following the introduction of multiplex real-time polymerase chain reaction tests, the clinical impact of viral coinfection in children with ADV infection has rarely been reported. MATERIALS AND METHODS: Medical records of children diagnosed with ADV infection were retrospectively reviewed. The enrolled children were divided into two groups based on the identified respiratory viruses: ADV group and coinfection group...
December 2016: Infection & Chemotherapy
https://www.readbyqxmd.com/read/27875593/enterovirus-d68-in-hospitalized-children-sequence-variation-viral-loads-and-clinical-outcomes
#16
Katherine Moyer, Huanyu Wang, Douglas Salamon, Amy Leber, Asuncion Mejias
BACKGROUND: An outbreak of enterovirus D68 (EV-D68) caused severe respiratory illness in 2014. The disease spectrum of EV-D68 infections in children with underlying medical conditions other than asthma, the role of EV-D68 loads on clinical illness, and the variation of EV-D68 strains within the same institution over time have not been described. We sought to define the association between EV-D68 loads and sequence variation, and the clinical characteristic in hospitalized children at our institution from 2011 to 2014...
2016: PloS One
https://www.readbyqxmd.com/read/27854115/an-investigation-into-respiratory-tract-viruses-in-children-with-acute-lower-respiratory-tract-infection-or-wheezing
#17
Demet Dabaniyasti, Fahriye Eksi, Özlem Keskin, Mehmet Y Özkars, Tekin Karsligil, Iclal Balci
BACKGROUND: This study aimed to determine the frequencies of respiratory tract viruses in patient (acute lower respiratory tract infection (LRTI) or wheezing) and control (history of asthma without symptoms) groups. METHODS: Using multiplex-PCR, respiratory tract viruses were investigated in the respiratory tract specimens from patient and control groups followed in the Pediatric Clinic. RESULTS: The viruses detected in the patient and control groups (p=0...
November 17, 2016: Minerva Pediatrica
https://www.readbyqxmd.com/read/27836955/ifn-%C3%AE-ifn-%C3%AE-responses-to-respiratory-viruses-in-paediatric-asthma
#18
Annika Bergauer, Nina Sopel, Bettina Kroß, Tytti Vuorinen, Paraskevi Xepapadaki, Scott T Weiss, Ashley Blau, Himanshu Sharma, Cornelia Kraus, Rebekka Springel, Manfred Rauh, Susanne Mittler, Anna Graser, Theodor Zimmermann, Volker O Melichar, Alexander Kiefer, Marek L Kowalski, Anna Sobanska, Tuomas Jartti, Heikki Lukkarinen, Nikolaos G Papadopoulos, Susetta Finotto
We analysed the influence of rhinovirus (RV) in nasopharyngeal fluid (NPF) on type I and III interferon (IFN) responses (e.g. IFN-α and IFN -: λ) and their signal transduction, at baseline and during disease exacerbation, in cohorts of pre-school children with and without asthma.At the time of recruitment into the Europe-wide study PreDicta, and during symptoms, NPF was collected and the local RV colonisation was analysed. Peripheral blood mononuclear cells (PBMCs) were challenged in vitro with RV or not...
November 11, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27817772/-an-epidemiological-study-on-human-rhinovirus-c-in-hospitalized-children-with-respiratory-tract-infections
#19
Li Li, Wei Ji, Xue-Jun Shao, Jun Xu, Wu-Jun Jiang, Zheng-Rong Chen, Yong-Dong Yan
OBJECTIVE: To investigate the detection rates, epidemical characteristics, and clinical features of human rhinovirus C (HRV-C) in hospitalized children with respiratory tract infections (RTIs) in Suzhou, China. METHODS: A total of 1 702 hospitalized children with RTIs from January to December, 2014 were enrolled, and 1 702 nasopharyngeal aspirate samples were collected from all children. RT-PCR was used to measure HRV mRNA, and quantitative real-time PCR combined with high-resolution melting curve was used to measure HRV-C...
November 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/27800148/prevalence-and-seasonal-distribution-of-respiratory-viruses-during-the-2014-2015-season-in-istanbul
#20
Safak Goktas, Mumtaz Cem Sirin
BACKGROUND: Acute respiratory tract infection (ARTI) is one of the most common infections worldwide, causing significant morbidity and mortality. OBJECTIVES: This study was conducted to determine the prevalence and seasonal distribution of respiratory viruses in our region, in children and adults with a pre-diagnosis of ARTI. METHODS: A total of 845 nasopharyngeal swab specimens were analyzed with the RespiFinder Smart 22 kit (PathoFinder BV, Netherlands) and the Rotor-Gene 6000 real-time PCR system...
September 2016: Jundishapur Journal of Microbiology
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