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https://www.readbyqxmd.com/read/29119851/clinical-characteristics-of-children-infected-with-enterovirus-d68-in-an-outpatient-clinic-and-the-association-with-bronchial-asthma
#1
Tsutomu Itagaki, Yoko Aoki, Yohei Matoba, Shizuka Tanaka, Tatsuya Ikeda, Katsumi Mizuta, Yoko Matsuzaki
BACKGROUND: All reports of increases in severe respiratory disease associated with human enterovirus D68 (EV-D68) are from hospital settings. However, there are few reports describing clinical characteristics in less severely affected populations. METHODS: We conducted a retrospective observational study from January 2010 to December 2015 in Yamagata, Japan. Using regional passive surveillance, 5794 respiratory specimens were collected from children who initially presented to an outpatient clinic with acute respiratory symptoms...
November 9, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/29115723/patterns-of-paediatric-emergency-presentations-to-a-tertiary-referral-centre-in-the-northern-territory
#2
Davina Buntsma, Anna Lithgow, Evan O'Neill, Didier Palmer, Peter Morris, Jason Acworth, Franz E Babl
OBJECTIVE: To describe epidemiological data concerning paediatric attendances at the ED of Royal Darwin Hospital (RDH). METHODS: We conducted a retrospective cohort study of paediatric emergency presentations to the RDH ED during 2004 and 2013. Epidemiological data, including demographics, admission rates and diagnostic grouping, were analysed using descriptive and comparative statistical methods. We compared data with findings from a baseline epidemiological study by the Paediatric Research in Emergency Departments International Collaborative (PREDICT) conducted in 2004...
November 8, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29076101/bordetella-pertussis-infection-in-hospitalized-infants-with-acute-bronchiolitis
#3
Şule Gökçe, Zafer Kurugöl, S Şöhret Aydemir, Candan Çiçek, Aslı Aslan, Güldane Koturoğlu
OBJECTIVE: To assess the frequency of B. pertussis infection among young infants hospitalized with acute bronchiolitis and to determine whether B. pertussis infection affects the clinical course of acute bronchiolitis. METHODS: A total of 172 infants <6 months of age hospitalized with acute bronchiolitis were tested for B. pertussis and respiratory viruses with real-time PCR. Cases were divided into 2 groups according to B. pertussis positive or negative. Clinical parameters, clinical severity scores and laboratory characteristics of the pertussis-positive and pertussis-negative cases were compared...
October 27, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29050972/lair-1-limits-neutrophil-extracellular-trap-formation-in-viral-bronchiolitis
#4
Ruben J Geerdink, Marije P Hennus, Geertje H A Westerlaken, Alferso C Abrahams, Kim I Albers, Jona Walk, Esther Wesselink, Riny Janssen, Louis Bont, Linde Meyaard
No abstract text is available yet for this article.
October 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29045741/respiratory-syncytial-virus-genotypes-host-immune-profiles-and-disease-severity-in-young-children-hospitalized-with-bronchiolitis
#5
Rosa Rodriguez-Fernandez, Lorena I Tapia, Chin-Fen Yang, Juan Pablo Torres, Susana Chavez-Bueno, Carla Garcia, Lisa M Jaramillo, Melissa Moore-Clingenpeel, Hasan S Jafri, Mark E Peeples, Pedro A Piedra, Octavio Ramilo, Asuncion Mejias
Background: Data on how RSV genotypes influence disease severity and host immune responses is limited. We characterized the genetic variability of RSV during five seasons, and evaluated the role of RSV subtypes, genotypes and viral loads on disease severity and host transcriptional profiles. Methods: Prospective, observational study including a convenience sample of healthy infants hospitalized with RSV bronchiolitis. Nasopharyngeal samples for viral load quantitation, typing and genotyping, and blood samples for transcriptome analyses were obtained within 24h of hospitalization...
October 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29020237/hiv-associated-chronic-lung-disease-in-children-and-adolescents-in-zimbabwe-chest-radiographic-and-high-resolution-computed-tomography-findings
#6
Sujal R Desai, Arjun Nair, Jamie Rylance, Hilda Mujuru, Kusum Nathoo, Grace McHugh, Edith Majonga, John Metcalfe, Katharina Kranzer, Rashida A Ferrand
Background: Chronic respiratory symptoms are common among children living with HIV. We investigated the radiological features of chronic lung disease in children aged 6 to 16 years taking antiretroviral therapy for at least six months in Harare, Zimbabwe. Methods: Consecutive participants from a HIV clinic underwent clinical assessment and chest radiography (CXR). Participants with an abnormal CXR (assessed by a clinician) and/or those meeting a clinical case definition for chronic lung disease (CLD) underwent high-resolution computed tomography (HRCT)...
September 4, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28992427/effects-of-cannabinoid-receptor-type-2-in-respiratory-syncytial-virus-infection-in-human-subjects-and-mice
#7
Alireza Tahamtan, Yazdan Samieipoor, Fatemeh Sadat Nayeri, Ali Akbar Rahbarimanesh, Anahita Izadi, Ali Rashidi-Nezhad, Masoumeh Tavakoli-Yaraki, Mohammad Farahmand, Louis Bont, Fazel Shokri, Talat Mokhatri-Azad, Vahid Salimi
An accumulating body of evidence suggests that the endocannabinoid system plays a significant role in pathophysiological processes and impacts disease severity. Here we investigate the possible role of a cannabinoid receptor type 2 (CB2) functional variant in determining disease severity and the potential pharmacological therapeutic effects of CB2 activation in viral respiratory infection. The common missense variant (CAA/CGG; Q63R) of the gene-encoding CB2 receptor (CNR2) was evaluated in 90 inpatient and 90 outpatient children with acute respiratory tract infection (ARTI)...
October 9, 2017: Virulence
https://www.readbyqxmd.com/read/28987219/role-of-viral-infections-in-the-development-and-exacerbation-of-asthma-in-children
#8
REVIEW
Tuomas Jartti, James E Gern
Viral infections are closely linked to wheezing illnesses in children of all ages. Respiratory syncytial virus (RSV) is the main causative agent of bronchiolitis, whereas rhinovirus (RV) is most commonly detected in wheezing children thereafter. Severe respiratory illness induced by either of these viruses is associated with subsequent development of asthma, and the risk is greatest for young children who wheeze with RV infections. Whether viral illnesses actually cause asthma is the subject of intense debate...
October 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28968829/the-ns1-protein-of-respiratory-syncytial-virus-blocks-glucocorticoid-receptor-nuclear-translocation-by-targeting-ipo13-may-account-for-glucocorticoid-insensitive
#9
Jun Xie, Xiaoru Long, Leiqiong Gao, Sisi Chen, Keting Zhao, Wei Li, Na Zhou, Na Zang, Yu Deng, Luo Ren, Lijia Wang, Zhengxiu Luo, Wenwei Tu, Xiaodong Zhao, Zhou Fu, Xiaohong Xie, Enmei Liu
In spite of their powerful anti-inflammatory effect, glucocorticoids have shown no significant clinical benefit in respiratory syncytial virus (RSV)-induced bronchiolitis, the reason for which remains unclear. Upon glucocorticoid binding, the cytoplasmic glucocorticoid receptor (GR) translocates to the nucleus with the help of importin-13 (IPO13). Here, we report that RSV infection reduced GR nuclear translocation in the nasopharyngeal aspirate (NPA) of the RSV-infected infants, lungs of infected mice, and A549 cells, which coincided with decreased IPO13 expression...
September 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28948867/prevalence-and-genetic-characterisation-of-respiratory-syncytial-viruses-circulating-in-bulgaria-during-the-2014-15-and-2015-16-winter-seasons
#10
Neli Korsun, Svetla Angelova, Iren Tzotcheva, Irina Georgieva, Snezhina Lazova, Snezhana Parina, Ivaylo Alexiev, Penka Perenovska
The respiratory syncytial virus (RSV) is a leading cause of acute respiratory illnesses (ARI) in infants and young children. The objectives of this study were to investigate the RSV circulation among children aged <5 years in Bulgaria, to identify the RSV-A and RSV-B genotypes and to perform an amino acid sequence analysis of second hypervariable region (HVR2) of the G gene. During the 2014/15 and 2015/16 winter seasons, nasopharyngeal specimens of 610 children aged <5 years with ARI were tested using Real Time RT-PCR for influenza viruses, RSV, metapneumovirus, parainfluenza viruses, rhinoviruses and adenoviruses...
September 26, 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28947640/clinical-definition-of-respiratory-viral-infections-in-young-children-and-potential-bronchiolitis-misclassification
#11
Rosemary Megalaa, Geovanny F Perez, Sasikumar Kilaikode-Cheruveettara, Nidhi Kotwal, Carlos E Rodriguez-Martinez, Gustavo Nino
Viral respiratory infections are often grouped as a single respiratory syndrome named 'viral bronchiolitis', independently of the viral etiology or individual risk factors. Clinical trials and guidelines have used a more stringent definition of viral bronchiolitis, including only the first episode of wheezing in children less than 12 months of age without concomitant respiratory comorbidities. There is increasing evidence suggesting that this definition is not being followed by pediatric care providers, but it is unclear to what extent viral respiratory infections are currently misclassified as viral bronchiolitis using standard definitions...
September 24, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28886185/clinical-features-and-seasonality-of-parechovirus-infection-in-an-asian-subtropical-city-hong-kong
#12
Grace P K Chiang, Zigui Chen, Martin C W Chan, Simon H M Lee, Angela K Kwok, Apple C M Yeung, E Anthony S Nelson, Kam Lun Hon, Ting Fan Leung, Paul K S Chan
BACKGROUND: The epidemiology of human parechovirus (HPeV) in Asia remains obscure. We elucidated the prevalence, seasonality, type distribution and clinical presentation of HPeV among children in Hong Kong. METHODS: A 24-month prospective study to detect HPeV in children ≤36 months hospitalized for acute viral illnesses. RESULTS: 2.3% of the 3911 children examined had HPeV infection, with most (87.5%) concentrated in September-January (autumn-winter)...
2017: PloS One
https://www.readbyqxmd.com/read/28878128/respiratory-syncytial-virus-infection-of-newborn-cx3cr1-deficent-mice-induces-a-pathogenic-pulmonary-innate-immune-response
#13
Sudipta Das, Mahesh Raundhal, Jie Chen, Timothy B Oriss, Rachael Huff, John V Williams, Anuradha Ray, Prabir Ray
Respiratory syncytial virus (RSV) infects almost all infants by 2 years of age, and severe bronchiolitis resulting from RSV infection is the primary cause of hospitalization in the first year of life. Among infants hospitalized due to RSV-induced bronchiolitis, those with a specific mutation in the chemokine receptor CX3CR1, which severely compromises binding of its ligand CX3CL1, were at a higher risk for more severe viral bronchiolitis than those without the mutation. Here, we show that RSV infection of newborn mice deficient in CX3CR1 leads to significantly greater neutrophilic inflammation in the lungs, accompanied by an increase in mucus production compared with that induced in WT mice...
September 7, 2017: JCI Insight
https://www.readbyqxmd.com/read/28871880/clinical-factors-associated-with-chest-imaging-findings-in-hospitalized-infants-with-bronchiolitis
#14
Joanne M Nazif, Benjamin H Taragin, Gabriella Azzarone, Michael L Rinke, Sheila Liewehr, Jaeun Choi, Nora Esteban-Cruciani
Despite recommendations against routine imaging, chest radiography (CXR) is frequently performed on infants hospitalized for bronchiolitis. We conducted a review of 811 infants hospitalized for bronchiolitis to identify clinical factors associated with imaging findings. CXR was performed on 553 (68%) infants either on presentation or during hospitalization; 466 readings (84%) were normal or consistent with viral illness. Clinical factors significantly associated with normal/viral imaging were normal temperature (odds ratio = 1...
October 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28861397/modulation-of-host-immunity-by-human-respiratory-syncytial-virus-virulence-factors-a-synergic-inhibition-of-both-innate-and-adaptive-immunity
#15
REVIEW
Gisela Canedo-Marroquín, Orlando Acevedo-Acevedo, Emma Rey-Jurado, Juan M Saavedra, Margarita K Lay, Susan M Bueno, Claudia A Riedel, Alexis M Kalergis
The Human Respiratory Syncytial Virus (hRSV) is a major cause of acute lower respiratory tract infections (ARTIs) and high rates of hospitalizations in children and in the elderly worldwide. Symptoms of hRSV infection include bronchiolitis and pneumonia. The lung pathology observed during hRSV infection is due in part to an exacerbated host immune response, characterized by immune cell infiltration to the lungs. HRSV is an enveloped virus, a member of the Pneumoviridae family, with a non-segmented genome and negative polarity-single RNA that contains 10 genes encoding for 11 proteins...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28859915/viral-bronchiolitis-in-young-infants-new-perspectives-for-management-and-treatment
#16
REVIEW
Mauricio T Caballero, Fernando P Polack, Renato T Stein
OBJECTIVE: The aim of this review was to address advances in management and treatment of acute viral bronchiolitis in infants. SOURCES: A systematic review search was made including all articles published in English between 2010 and 2017, and available in the electronic databases PubMed and Cochrane Central Register of Controlled Trials (CENTRAL) and specialized register of the Acute Respiratory Infections Group (Cochrane review group). The following MESH terms in English were included, using different Boolean operators for the search strategy: "bronchiolitis, viral," "diagnosis," "epidemiology," "etiology," "therapy," "virology," "prevention and control," "respiratory syncytial virus, human...
November 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28859019/age-specific-antibiotic-prescribing-and-adherence-to-guidelines-in-pediatric-patients-in-primary-care
#17
Verica Ivanovska, Karin Hek, Aukje K Mantel-Teeuwisse, Hubert G M Leufkens, Liset van Dijk
BACKGROUND: Most antibiotics in children are used to treat viral and self-limiting conditions. This study aims to compare physicians' adherence to guidelines on antibiotic prescribing in fever and in ear and respiratory infections to children in different age groups in the Netherlands. METHODS: Data were used from the NIVEL Primary Care Database. For all pediatric episodes of fever, acute otitis media (AOM), streptococcal pharyngitis (strep throat), sinusitis, acute tonsillitis, acute bronchitis/bronchiolitis and pneumonia in 2012, we determined whether national guidelines were followed in regard to whether an antibiotic was prescribed, and the type of antibiotic...
August 28, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28844075/hrct-findings-of-childhood-follicular-bronchiolitis
#18
Jason P Weinman, David A Manning, Deborah R Liptzin, Amanda J Krausert, Lorna P Browne
BACKGROUND: Follicular bronchiolitis is a lymphoproliferative form of interstitial lung disease (ILD) defined by the presence of peribronchial lymphoid follicles. Follicular bronchiolitis has been associated with viral infection, autoimmune disease and immunodeficiency. The most common clinical manifestation is respiratory distress in infancy followed by a prolonged course with gradual improvement. We found no reports of systematic review of high-resolution computed tomography (HRCT) findings in pediatric follicular bronchiolitis...
August 26, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28839957/high-flow-nasal-cannulae-for-acute-viral-bronchiolitis-in-young-infants-evidence-based-medicine-is-underway-to-define-target-populations-and-optimal-flows
#19
EDITORIAL
Gilles Cambonie, Marti Pons-Odena, Julien Baleine, Christophe Milési
No abstract text is available yet for this article.
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28839157/acute-respiratory-infections-in-hospitalized-children-in-vientiane-lao-pdr-the-importance-of-respiratory-syncytial-virus
#20
Van Hoan Nguyen, Audrey Dubot-Pérès, Fiona M Russell, David A B Dance, Keoudomphone Vilivong, Souphatsone Phommachan, Chanthaphone Syladeth, Jana Lai, Ruth Lim, Melinda Morpeth, Mayfong Mayxay, Paul N Newton, Hervé Richet, Xavier De Lamballerie
The Human respiratory syncytial virus (RSV) is one of the most important viral pathogens, causing epidemics of acute respiratory infection (ARI), especially bronchiolitis and pneumonia, in children worldwide. To investigate the RSV burden in Laos, we conducted a one-year study in children <5 years old admitted to Mahosot Hospital, Vientiane Capital, to describe clinical and epidemiological characteristics and predictive factors for severity of RSV-associated ARI. Pooled nasal and throat swabs were tested using multiplex real-time PCR for 33 respiratory pathogens (FTD(®) kit)...
August 24, 2017: Scientific Reports
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