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https://www.readbyqxmd.com/read/28922613/the-etiology-of-community-acquired-pneumonia-among-children-under-5%C3%A2-years-of-age-in-mainland-china-2001-2015-a-systematic-review
#1
Guijun Ning, Xuxia Wang, Dan Wu, Zundong Yin, Yixing Li, Huaqing Wang, Weizhong Yang
BACKGROUND: The aim of this systematic review was to examine the etiology of community-acquired pneumonia (CAP) among Chinese children younger than 5 years and provide evidence for further cost-effectiveness analyses for vaccine development, diagnostic strategies and empirical treatments. METHODS: The literature review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Data were obtained by searching PubMed, Embase, Web-of Science, and the Chinese databases Wanfang Data and China National Knowledge Infrastructure...
September 18, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28918235/identification-of-bluetongue-virus-serotypes-1-4-and-17-co-infections-in-sheep-flocks-during-outbreaks-in-brazil
#2
Lorena Lima Barbosa Guimarães, Júlio César Câmara Rosa, Ana Carolina Diniz Matos, Raquel Aparecida S Cruz, Maria Isabel Maldonado Coelho Guedes, Fernanda Alves Dorella, Henrique César Pereira Figueiredo, Saulo Petinatti Pavarini, Luciana Sonne, Zélia Inês Portela Lobato, David Driemeier
Bluetongue (BT) is a vector-borne viral disease caused by the Bluetongue virus (BTV), an Orbivirus from the Reoviridae family, affecting domestic and wild ruminants. BTV circulation in Brazil was first reported in 1978, and several serological surveys indicate that the virus is widespread, although with varied prevalence. In 2014, BT outbreaks affected sheep flocks in Rio Grande do Sul state, causing significant mortality (18.4%; 91/495) in BTV-infected sheep. In total, seven farms were monitored, and one or two sheep from each farm that died due to clinical signs of BT were necropsied...
September 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28917132/a-novel-real-time-rt-pcr-assay-for-influenza-c-tested-in-peruvian-children
#3
Leigh M Howard, Monika Johnson, Ana I Gil, Andrew Pekosz, Marie R Griffin, Kathryn M Edwards, Claudio F Lanata, Carlos G Grijalva, John V Williams
BACKGROUND: Influenza C virus (ICV) is associated with acute respiratory illness. Yet ICV remains under recognized, with most previous studies using only culture to identify cases. OBJECTIVES: To develop a sensitive and specific real-time RT-PCR assay for ICV that allows for rapid and accurate detection in a clinical or research setting. STUDY DESIGN: Multiple ICV sequences obtained from GenBank were analyzed, including 141 hemagglutinin-esterase (HE), 106 matrix (M), and 97 nucleoprotein (NP) sequences...
September 1, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28916773/functional-organization-of-cytoplasmic-inclusion-bodies-in-cells-infected-by-respiratory-syncytial-virus
#4
Vincent Rincheval, Mickael Lelek, Elyanne Gault, Camille Bouillier, Delphine Sitterlin, Sabine Blouquit-Laye, Marie Galloux, Christophe Zimmer, Jean-François Eleouet, Marie-Anne Rameix-Welti
Infection of cells by respiratory syncytial virus induces the formation of cytoplasmic inclusion bodies (IBs) where all the components of the viral RNA polymerase complex are concentrated. However, the exact organization and function of these IBs remain unclear. In this study, we use conventional and super-resolution imaging to dissect the internal structure of IBs. We observe that newly synthetized viral mRNA and the viral transcription anti-terminator M2-1 concentrate in IB sub-compartments, which we term "IB-associated granules" (IBAGs)...
September 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28916759/influenza-d-in-italy-towards-a-better-understanding-of-an-emerging-viral-infection-in-swine
#5
Emanuela Foni, Chiara Chiapponi, Laura Baioni, Irene Zanni, Marianna Merenda, Carlo Rosignoli, Constantinos S Kyriakis, Mario Vittorio Luini, Maria Lucia Mandola, Luca Bolzoni, Arrigo Daniele Nigrelli, Silvia Faccini
Influenza D virus (IDV), a new member of the Orthomyxoviridae family, was first reported in 2011 in swine in Oklahoma, and consequently found in cattle across North America and Eurasia. To investigate the circulation of IDV among pigs in Italy, in the period between June 2015 and May 2016, biomolecular and virological tests were performed on 845 clinical samples collected from 448 pig farms affected by respiratory distress located in the Po Valley. Serological tests were conducted on 3698 swine sera, including archive sera collected in 2009, as well as samples collected in 2015 from the same region...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915327/adipose-tissue-in-hiv-infection
#6
John R Koethe
HIV infection and antiretroviral therapy (ART) treatment exert diverse effects on adipocytes and stromal-vascular fraction cells, leading to changes in adipose tissue quantity, distribution, and energy storage. A HIV-associated lipodystrophic condition was recognized early in the epidemic, characterized by clinically apparent changes in subcutaneous, visceral, and dorsocervical adipose depots. Underlying these changes is altered adipose tissue morphology and expression of genes central to adipocyte maturation, regulation, metabolism, and cytokine signaling...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28913992/effects-of-immunoglobulin-replacement-on-asthma-exacerbation-in-adult-asthmatics-with-igg-subclass-deficiency
#7
Joo Hee Kim, Young Min Ye, Ga Young Ban, Yoo Seob Shin, Hyun Young Lee, Young Hee Nam, Soo Keol Lee, You Sook Cho, Seung Hun Jang, Ki Suck Jung, Hae Sim Park
PURPOSE: Recurrent respiratory tract infection is a common manifestation of primary immunodeficiency disease, and respiratory viruses or bacteria are important triggers of asthma exacerbations. Asthma often coexists with humoral immunodeficiency in adults, and some asthmatics with immunoglobulin (Ig) G subclass deficiency (IgGSCD) suffer from recurrent exacerbations. Although some studies suggest a benefit from Ig replacement, others have failed to support its use. This study aimed to assess the effect of Ig replacement on asthma exacerbation caused by respiratory infection as well as the asthma control status of adult asthmatics with IgGSCD...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28913991/seasonal-cycle-and-relationship-of-seasonal-rhino-and-influenza-virus-epidemics-with-episodes-of-asthma-exacerbation-in-different-age-groups
#8
Seung Won Lee, Shinhae Lee, Youn Ho Sheen, Eun Kyo Ha, Sun Hee Choi, Min Suk Yang, Sohyun Hwang, Sung Soon Kim, Jang Hoon Choi, Man Yong Han
PURPOSE: Seasonal variations in asthma exacerbation (AE) are associated with respiratory virus outbreaks and the return of children to school after vacation. This study aims to elucidate the period, phase, and amplitude of seasonal cycles of AE in 5 different age groups with regard to rhino- and influenza virus epidemics in Korea. METHODS: The number of daily emergency department (ED) visits for AE in all age groups of Korea and the nationwide weekly incidence of rhino- and influenza virus, were obtained for 2008-2012...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28913988/prevalence-of-respiratory-viral-infections-in-korean-adult-asthmatics-with-acute-exacerbations-comparison-with-those-with-stable-state
#9
Ki Hyun Seo, Da Jeong Bae, Ji Na Kim, Ho Sung Lee, Yong Hoon Kim, Jong Sook Park, Myung Shin Kim, Hun Soo Chang, Ji Hye Son, Dong Gyu Baek, Jun Suk Lee, Choon Sik Park
PURPOSE: Viral infections are involved in ~50% of exacerbations among Caucasian adult asthmatics. However, there have been few reports on the causative virus of exacerbations in Korean adult asthmatics. Thus, we compared frequencies and types of viruses between lower respiratory tract illnesses (LRTIs) with exacerbations (exacerbated LRTIs) and those without exacerbations (stable LRTIs) to evaluate contribution of respiratory viruses to exacerbations. METHODS: Viral RNA was extracted from sputum using the Viral Gene-spin™ Kit...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28913912/streptococcus-pneumoniae-colonization-of-the-nasopharynx-is-associated-with-increased-severity-during-respiratory-syncytial-virus-infection-in-young-children
#10
Jaelle C Brealey, Keith J Chappell, Sally Galbraith, Emmanuelle Fantino, Jane Gaydon, Sarah Tozer, Paul R Young, Patrick G Holt, Peter D Sly
BACKGROUND AND OBJECTIVE: Respiratory syncytial virus (RSV) is the most significant cause of acute respiratory infection (ARI) in early life. RSV and other respiratory viruses are known to stimulate substantial outgrowth of potentially pathogenic bacteria in the upper airways of young children. However, the clinical significance of interactions between viruses and bacteria is currently unclear. The present study aimed to clarify the effect of viral and bacterial co-detections on disease severity during paediatric ARI...
September 15, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28912779/v%C3%AE-4-%C3%AE-%C3%AE-t-cells-aggravate-severe-h1n1-influenza-virus-infection-induced-acute-pulmonary-immunopathological-injury-via-secreting-interleukin-17a
#11
Chunxue Xue, Mingjie Wen, Linlin Bao, Hui Li, Fengdi Li, Meng Liu, Qi Lv, Yunqing An, Xulong Zhang, Bin Cao
The influenza A (H1N1) pdm09 virus remains a critical global health concern and causes high levels of morbidity and mortality. Severe acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are the major outcomes among severely infected patients. Our previous study found that interleukin (IL)-17A production by humans or mice infected with influenza A (H1N1) pdm09 substantially contributes to ALI and subsequent morbidity and mortality. However, the cell types responsible for IL-17A production during the early stage of severe influenza A (H1N1) pdm09 infection remained unknown...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28912760/immunization-with-live-human-rhinovirus-hrv-16-induces-protection-in-cotton-rats-against-hrv14-infection
#12
Mira C Patel, Lioubov M Pletneva, Marina S Boukhvalova, Stefanie N Vogel, Adriana E Kajon, Jorge C G Blanco
Human rhinoviruses (HRVs) are the main cause of cold-like illnesses, and currently no vaccine or antiviral therapies against HRVs are available to prevent or mitigate HRV infection. There are more than 150 antigenically heterogeneous HRV serotypes, with ∼90 HRVs belonging to major group species A and B. Development of small animal models that are susceptible to infection with major group HRVs would be beneficial for vaccine research. Previously, we showed that the cotton rat (Sigmodon hispidus) is semi-permissive to HRV16 (major group, species HRV-A virus) infection, replicating in the upper and lower respiratory tracts with measurable pathology, mucus production, and expression of inflammatory mediators...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28912326/complete-genome-sequence-of-a-novel-subgenotype-of-porcine-reproductive-and-respiratory-syndrome-virus-strain-jx-ch-2016-isolated-in-jiangxi-china
#13
Fanfan Zhang, Deping Song, Yu Ye, Nannan Guo, Min Zhang, Hao Li, Dan Lei, Wang Gong, Suxian Luo, Dongyan Huang, Yuxin Tang
We sequenced the complete genome of porcine reproductive and respiratory syndrome virus (PRRSV) strain JX/CH/2016. Phylogenetic analysis based on the sequences of the open reading frame 5 (ORF5) gene revealed that this strain belongs to subgenotype IV. This is the first report of the complete genome sequence of PRRSV-IV.
September 14, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28911764/global-respiratory-syncytial-virus-associated-mortality-in-young-children-rsv-gold-a-retrospective-case-series
#14
Nienke M Scheltema, Angela Gentile, Florencia Lucion, D James Nokes, Patrick K Munywoki, Shabir A Madhi, Michelle J Groome, Cheryl Cohen, Jocelyn Moyes, Kentigern Thorburn, Somsak Thamthitiwat, Hitoshi Oshitani, Socorro P Lupisan, Aubree Gordon, José F Sánchez, Katherine L O'Brien, Bradford D Gessner, Agustinus Sutanto, Asuncion Mejias, Octavio Ramilo, Najwa Khuri-Bulos, Natasha Halasa, Fernanda de-Paris, Márcia Rosane Pires, Michael C Spaeder, Bosco A Paes, Eric A F Simões, Ting F Leung, Maria Tereza da Costa Oliveira, Carla Cecília de Freitas Lázaro Emediato, Quique Bassat, Warwick Butt, Hsin Chi, Uzma Bashir Aamir, Asad Ali, Marilla G Lucero, Rodrigo A Fasce, Olga Lopez, Barbara A Rath, Fernando P Polack, Jesse Papenburg, Srđan Roglić, Hisato Ito, Edward A Goka, Diederick E Grobbee, Harish Nair, Louis J Bont
BACKGROUND: Respiratory syncytial virus (RSV) infection is an important cause of pneumonia mortality in young children. However, clinical data for fatal RSV infection are scarce. We aimed to identify clinical and socioeconomic characteristics of children aged younger than 5 years with RSV-related mortality using individual patient data. METHODS: In this retrospective case series, we developed an online questionnaire to obtain individual patient data for clinical and socioeconomic characteristics of children aged younger than 5 years who died with community-acquired RSV infection between Jan 1, 1995, and Oct 31, 2015, through leading research groups for child pneumonia identified through a comprehensive literature search and existing research networks...
October 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28911753/respiratory-syncytial-virus-mortality-among-young-children
#15
Geoffrey A Weinberg
No abstract text is available yet for this article.
October 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28906003/inclusion-of-mers-spike-protein-elisa-in-algorithm-to-determine-serologic-evidence-of-mers-cov-infection
#16
Suvang Trivedi, Congrong Miao, Mohammad Mousa Al-Abdallat, Aktham Haddadin, Sultan Alqasrawi, Ibrahim Iblan, Mohannad Al Nsour, Tarek Alsanouri, Sami Sheikh Ali, Brian Rha, Susan I Gerber, Daniel C Payne, Azaibi Tamin, Natalie J Thornburg
The Centers for Disease Control and Prevention (CDC) algorithm for detecting presence of serum antibodies against Middle East Respiratory Syndrome coronavirus (MERS-CoV) in subjects with potential infections with the virus has included screening by indirect ELISA against recombinant nucleocapsid (N) protein and confirmation by immunofluorescent staining of infected monolayers and/or microneutralization titration. Other international groups include indirect ELISA assays using the spike (S) protein, as part of their serological determinations...
September 14, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28905532/incidence-and-risk-factors-of-pneumonia-in-hospitalized-patients-with-seasonal-influenza-a-or-b
#17
Seongjun Chu, Sang Joon Park, So My Koo, Yang Ki Kim, Ki Up Kim, Soo Taek Uh, Tae Hyung Kim, Suyeon Park
BACKGROUND: Most patients with influenza recover spontaneously or following treatment with an anti-viral agent, but some patients experience pneumonia requiring hospitalization. We conducted a retrospective review to determine the incidence and risk factors of pneumonia in hospitalized patients with influenza A or B. METHODS: A total of 213 patients aged 18 years or older and hospitalized with influenza between January 2012 and January 2015 were included in this study...
September 1, 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28905531/elucidation-of-bacterial-pneumonia-causing-pathogens-in-patients-with-respiratory-viral-infection
#18
Hwa Sik Jung, Byung Ju Kang, Seung Won Ra, Kwang Won Seo, Yangjin Jegal, Jae Bum Jun, Jiwon Jung, Joseph Jeong, Hee Jeong Jeon, Jae Sung Ahn, Taehoon Lee, Jong Joon Ahn
BACKGROUND: Bacterial pneumonia occurring after respiratory viral infection is common. However, the predominant bacterial species causing pneumonia secondary to respiratory viral infections other than influenza remain unknown. The purpose of this study was to know whether the pathogens causing post-viral bacterial pneumonia vary according to the type of respiratory virus. METHODS: Study subjects were 5,298 patients, who underwent multiplex real-time polymerase chain reaction for simultaneous detection of respiratory viruses, among who visited the emergency department or outpatient clinic with respiratory symptoms at Ulsan University Hospital between April 2013 and March 2016...
September 1, 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28905526/transmission-and-immunopathology-of-the-avian-influenza-virus-a-anhui-1-2013-h7n9-human-isolate-in-three-commonly-commercialized-avian-species
#19
B Vidaña, R Dolz, N Busquets, A Ramis, R Sánchez, R Rivas, R Valle, I Cordón, D Solanes, J Martínez, N Majó
H7N9 virus infection is a global concern, given that it can cause severe infection and mortality in humans. However, the understanding of H7N9 epidemiology, animal reservoir species and zoonotic risk remains limited. This work evaluates the pathogenicity, transmissibility and local innate immune response of three avian species harbouring different respiratory distribution of α2,6 and α2,3 SA receptors. Muscovy ducks, European quails and SPF chickens were intranasally inoculated with 10(5) embryo infectious dose (EID)50 of the human H7N9 (A/Anhui/1/2013) influenza isolate...
September 14, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28905112/extracorporeal-membrane-oxygenation-in-spina-bifida-and-h1n1-induced-acute-respiratory-distress-syndrome
#20
Oliver Jansen, Oliver Kamp, Christian Waydhas, Valentin Rausch, Thomas Armin Schildhauer, Justus Strauch, Dirk Buchwald, Uwe Hamsen
Acute respiratory distress syndrome (ARDS) is characterized as an acute hypoxemic and/or hypercapnic respiratory failure seen in critically ill patients and is still, although decreased over the past few years, associated with high mortality. Furthermore, ARDS may be a life-threatening complication of H1N1 pneumonia. We report on a 45-year-old spina bifida patient with confirmed H1N1 influenza virus infection causing acute respiratory failure, who was successfully weaned from 42-day veno-venous extracorporeal membrane oxygenation (vv-ECMO) treatment with an excellent outcome...
September 13, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
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