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rhinovirus infections in Children

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https://www.readbyqxmd.com/read/27904883/interactions-of-respiratory-viruses-and-the-nasal-microbiota-during-the-first-year-of-life-in-healthy-infants
#1
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
#2
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...
November 13, 2016: 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
#3
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...
November 21, 2016: Infection & Chemotherapy
https://www.readbyqxmd.com/read/27875593/enterovirus-d68-in-hospitalized-children-sequence-variation-viral-loads-and-clinical-outcomes
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/27796793/immune-responses-in-rhinovirus-induced-asthma-exacerbations
#9
REVIEW
John W Steinke, Larry Borish
Acute asthma exacerbations are responsible for urgent care visits and hospitalizations; they interfere with school and work productivity, thereby driving much of the morbidity and mortality associated with asthma. Approximately 80 to 85 % of asthma exacerbations in children, adolescents, and less frequently adults are associated with viral upper respiratory tract viral infections, and rhinovirus (RV) accounts for ∼60-70 % of these virus-associated exacerbations. Evidence suggests that it is not the virus itself but the nature of the immune response to RV that drives this untoward response...
November 2016: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/27780081/human-enterovirus-and-rhinovirus-infections-are-associated-with-otitis-media-in-a-prospective-birth-cohort-study
#10
Elina Seppälä, Saara Sillanpää, Noora Nurminen, Heini Huhtala, Jorma Toppari, Jorma Ilonen, Riitta Veijola, Mikael Knip, Markku Sipilä, Jussi Laranne, Sami Oikarinen, Heikki Hyöty
BACKGROUND: Human enteroviruses (HEVs) and rhinoviruses (HRVs) have been linked to acute otitis media (AOM). OBJECTIVES: The present study evaluates the aforementioned association in a birth cohort setting. STUDY DESIGN: The cohort included 286 healthy infants (191 boys) followed from birth up to the age of 2 years in the Type 1 Diabetes Prediction and Prevention study in Finland. Stool samples were collected monthly and analyzed for the presence of HRV and HEV RNA using RT-PCR...
October 20, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27776489/respiratory-microbes-present-in-the-nasopharynx-of-children-hospitalised-with-suspected-pulmonary-tuberculosis-in-cape-town-south-africa
#11
Felix S Dube, Mamadou Kaba, F J Lourens Robberts, Lemese Ah Tow, Sugnet Lubbe, Heather J Zar, Mark P Nicol
BACKGROUND: Lower respiratory tract infection in children is increasingly thought to be polymicrobial in origin. Children with symptoms suggestive of pulmonary tuberculosis (PTB) may have tuberculosis, other respiratory tract infections or co-infection with Mycobacterium tuberculosis and other pathogens. We aimed to identify the presence of potential respiratory pathogens in nasopharyngeal (NP) samples from children with suspected PTB. METHOD: NP samples collected from consecutive children presenting with suspected PTB at Red Cross Children's Hospital (Cape Town, South Africa) were tested by multiplex real-time RT-PCR...
October 24, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27775602/age-related-effect-of-viral-induced-wheezing-in-severe-prematurity
#12
Geovanny F Perez, Amisha Jain, Bassem Kurdi, Rosemary Megalaa, Krishna Pancham, Shehlanoor Huseni, Natalia Isaza, Carlos E Rodriguez-Martinez, Mary C Rose, Dinesh Pillai, Gustavo Nino
Premature children are prone to severe viral respiratory infections in early life, but the age at which susceptibility peaks and disappears for each pathogen is unclear. Methods: A retrospective analysis was performed of the age distribution and clinical features of acute viral respiratory infections in full-term and premature children, aged zero to seven years. Results: The study comprised of a total of 630 hospitalizations (n = 580 children). Sixty-seven percent of these hospitalizations occurred in children born full-term (>37 weeks), 12% in preterm (32-37 weeks) and 21% in severely premature children (<32 weeks)...
October 20, 2016: Children
https://www.readbyqxmd.com/read/27767919/nasopharyngeal-pneumococcal-density-and-evolution-of-acute-respiratory-illnesses-in-young-children-peru-2009-2011
#13
Roger R Fan, Leigh M Howard, Marie R Griffin, Kathryn M Edwards, Yuwei Zhu, John V Williams, Jorge E Vidal, Keith P Klugman, Ana I Gil, Claudio F Lanata, Carlos G Grijalva
We examined nasopharyngeal pneumococcal colonization density patterns surrounding acute respiratory illnesses (ARI) in young children in Peru. Pneumococcal densities were dynamic, gradually increasing leading up to an ARI, peaking during the ARI, and decreasing after the ARI. Rhinovirus co-infection was associated with higher pneumococcal densities.
November 2016: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27743968/-respiratory-viral-infections-in-a-cohort-of-children-during-the-first-year-of-life-and-their-role-in-the-development-of-wheezing
#14
Cristina Calvo, Isabel Aguado, María Luz García-García, Esther Ruiz-Chercoles, Eloisa Díaz-Martinez, Rosa María Albañil, Olga Campelo, Antonio Olivas, Luisa Muñóz-Gonzalez, Francisco Pozo, Rosa Fernandez-Arroyo, Adelaida Fernandez-Rincón, Ana Calderon, Inmaculada Casas
INTRODUCTION: It is known that infants with viral respiratory infections severe enough to require hospital admission have a high risk of developing recurrent wheezing. Few data have been published on unselected populations. The main aim of this study was to analyse symptomatic and asymptomatic respiratory viral infections during the first year of life in a cohort of infants, recruited at birth, and the development of recurrent wheezing. PATIENTS AND METHODS: A total of 302 newborns were recruited...
October 13, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/27743961/mutations-in-vp1-and-3a-proteins-improve-binding-and-replication-of-rhinovirus-c15-in-hela-e8-cells
#15
Yury A Bochkov, Kelly Watters, Sarmila Basnet, Shakher Sijapati, Marchel Hill, Ann C Palmenberg, James E Gern
Viruses in the rhinovirus C species (RV-C) can cause severe respiratory illnesses in children including pneumonia and asthma exacerbations. A transduced cell line (HeLa-E8) stably expressing the CDHR3-Y529 receptor variant, supports propagation of RV-C after infection. C15 clinical or recombinant isolates replicate in HeLa-E8, however progeny yields are lower than those of related strains of RV-A and RV-B. Serial passaging of C15 in HeLa-E8 resulted in stronger cytopathic effects and increased (≥10-fold) virus binding to cells and progeny yields...
December 2016: Virology
https://www.readbyqxmd.com/read/27729119/the-ubiquity-of-asymptomatic-respiratory-viral-infections-in-the-tonsils-and-adenoids-of-children-and-their-impact-on-airway-obstruction
#16
Howard Faden, Vincent Callanan, Michael Pizzuto, Mark Nagy, Mark Wilby, Daryl Lamson, Brian Wrotniak, Stefan Juretschko, Kirsten St George
BACKGROUND: Airway obstruction due to enlargement of tonsils and adenoids is a common pediatric problem resulting in sleep disordered breathing. The cause for the relatively abnormal growth of tonsils and adenoids is poorly understood. METHODS: Non-acutely ill children undergoing tonsillectomy and adenoidectomy (T&A) for various reasons were enrolled prospectively in a study to determine the frequency of asymptomatic respiratory viral infections in each lymphoid tissue and to relate the number and types of virus to the degree of airway obstruction...
November 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27726802/respiratory-rna-viruses
#17
Richard L Hodinka
Acute upper and lower respiratory infections are a major public health problem and a leading cause of morbidity and mortality worldwide. At greatest risk are young children, the elderly, the chronically ill, and those with suppressed or compromised immune systems. Viruses are the predominant cause of respiratory tract illnesses and include RNA viruses such as respiratory syncytial virus, influenza virus, parainfluenza virus, metapneumovirus, rhinovirus, and coronavirus. Laboratory testing is required for a reliable diagnosis of viral respiratory infections, as a clinical diagnosis can be difficult since signs and symptoms are often overlapping and not specific for any one virus...
August 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/27691995/the-presence-of-fever-in-adults-with-influenza-and-other-viral-respiratory-infections
#18
A A Chughtai, Q Wang, T C Dung, C R Macintyre
We compared the rates of fever in adult subjects with laboratory-confirmed influenza and other respiratory viruses and examined the factors that predict fever in adults. Symptom data on 158 healthcare workers (HCWs) with a laboratory-confirmed respiratory virus infection were collected using standardized data collection forms from three separate studies. Overall, the rate of fever in confirmed viral respiratory infections in adult HCWs was 23·4% (37/158). Rates varied by virus: human rhinovirus (25·3%, 19/75), influenza A virus (30%, 3/10), coronavirus (28·6%, 2/7), human metapneumovirus (28·6%, 2/7), respiratory syncytial virus (14·3%, 4/28) and parainfluenza virus (8·3%, 1/12)...
January 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/27679954/ifn-%C3%AE-blocks-development-of-an-asthma-phenotype-in-rhinovirus-infected-baby-mice-by-inhibiting-ilc2s
#19
Mingyuan Han, Jun Young Hong, Suraj Jaipalli, Charu Rajput, Jing Lei, Joanna L Hinde, Qiang Chen, Natalie M Hershenson, J Kelley Bentley, Marc B Hershenson
Early-life wheezing-associated infections with rhinovirus (RV) have been associated with asthma development in children. We have shown that RV infection of six day-old mice induces mucous metaplasia and airways hyperresponsiveness which is dependent on IL-13, IL-25 and type 2 innate lymphoid cells (ILC2s). Infection of immature mice fails to induce lung IFN-γ expression, in contrast to mature 8 week-old mice with a robust IFN-γ response, consistent with the notion that deficient IFN-γ production in immature mice permits RV-induced type 2 immune responses...
September 28, 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27678016/prevalence-and-molecular-characterization-of-human-rhinovirus-in-stool-samples-of-individuals-with-and-without-acute-gastroenteritis
#20
Prapaporn Khoonta, Piyada Linsuwanon, Nawarat Posuwan, Sompong Vongpunsawad, Sunchai Payungporn, Yong Poovorawan
Human rhinovirus (RV) most often causes mild upper respiratory tract infection. Although RV is routinely isolated from the respiratory tract, few studies have examined RV in other types of clinical samples. The prevalence of RV was examined in 1,294 stool samples collected mostly from children with acute gastroenteritis residing in Bangkok and Khon Kaen province of Thailand between January 2010 and October 2014. In addition, 591 samples from hand-foot-mouth disease (HFMD) or herpangina patients who do not have gastroenteritis served as a comparison group...
September 28, 2016: Journal of Medical Virology
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