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https://www.readbyqxmd.com/read/28925795/application-of-replication-defective-west-nile-virus-vector-to-non-flavivirus-vaccine-targets
#1
Maryann Giel-Moloney, Michael Vaine, Linong Zhang, Mark Parrington, Beata Gajewska, Thorsten U Vogel, Svetlana O Pougatcheva, Xiaochu Duan, Timothy Farrell, Irina Ustyugova, Sanjay Phogat, Harry Kleanthous, Konstantin V Pugachev
The RepliVaxvaccine platform(RV) is based on flavivirus genomes that are rationally attenuated by deletion. The self-limiting infection provided by RV has been demonstrated to be safe, highly immunogenic and efficacious for several vaccine candidates against flaviviruses. Here respiratory syncytial virus (RSV) F, influenza virus HA, and Simian Immunodeficiency virus (SIV) Env proteins were expressed in place of either prM-E or C-prM-E gene deletions of the West Nile (WN) genome. The resulting RV-RSV, -influenza and -SIV vaccine prototypes replicated efficiently in complementing helper cells expressing the WN structural proteins in trans...
September 19, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28924556/bilateral-submandibular-sialadenitis-following-influenza-a-virus-infection
#2
Satomi A Fujiwara, Toshimitsu Kobayashi, Ryoukichi Ikeda, Kaku Yasuda, Isao Kubota, Yasuchika Takeishi
A 48-year-old male presented to our hospital with pyrexia and general fatigue. The patient was diagnosed with influenza A virus infection, and then given laninamivir octanoate hydrate. Eleven days after onset, he noticed bilateral swollen submandibular glands. He visited our hospital again, and underwent blood examination and cervical computed tomography (CT). CT indicated that bilateral submandibular glands were swelling. We believe that this is the first report of bilateral submandibular sialadenitis following influenza A virus infection, and thus we presented this patient...
2017: IDCases
https://www.readbyqxmd.com/read/28924475/pandemics-public-health-emergencies-and-antimicrobial-resistance-putting-the-threat-in-an-epidemiologic-and-risk-analysis-context
#3
C Raina MacIntyre, Chau Minh Bui
Public health messaging about antimicrobial resistance (AMR) sometimes conveys the problem as an epidemic. We outline why AMR is a serious endemic problem manifested in hospital and community-acquired infections. AMR is not an epidemic condition, but may complicate epidemics, which are characterised by sudden societal impact due to rapid rise in cases over a short timescale. Influenza, which causes direct viral effects, or secondary bacterial complications is the most likely cause of an epidemic or pandemic where AMR may be a problem...
2017: Archives of Public Health, Archives Belges de Santé Publique
https://www.readbyqxmd.com/read/28924110/bloody-bronchial-cast-formation-due-to-alveolar-hemorrhage-associated-with-h1n1-influenza-infection
#4
Yohei Okada, Asami Okada, Hiromichi Narumiya, Ryoji Iiduka, Kanade Katsura
A previously healthy 55-year-old man with H1N1 influenza A presented with severe respiratory failure and cardiac arrest. Following the return of spontaneous circulation, venovenous extracorporeal membrane oxygenation was required to maintain oxygenation. On day 2, bronchoscopy revealed a bloody bronchial cast obstructing the right main bronchus. A pathological examination revealed that it was composed of intrabronchial and intra-alveolar hemorrhagic tissue. Unfortunately, the patient died due to severe brain ischemia; a subsequent autopsy revealed marked alveolar hemorrhage...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28923806/improving-the-health-of-patients-and-communities-evolving-practice-based-research-pbr-and-collaborations
#5
Kevin Fiscella
This issue illustrates how research from practice-based research networks has evolved to span a spectrum from improving patient-level care and practice quality to improving health within local and global communities. Articles address patient-level improvements (a biomarker for cardiovascular disease progression, late-onset anorexia nervosa, complementary health approaches used by patients, and patient preferences related to antibiotics for acute respiratory infections); practice-level improvements (selection of types of fecal immunochemical tests, practice facilitation, practice registry implementation, community-based outreach, and bidirectional texting); and community-level improvements (primary care-public health partnership, influenza surveillance, and establishing family medicine training abroad)...
September 2017: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28923071/characteristics-of-influenza-h13n8-subtype-virus-firstly-isolated-from-qinghai-lake-region-china
#6
Jie Dong, Hong Bo, Ye Zhang, Libo Dong, Shumei Zou, Weijuan Huang, Jia Liu, Dayan Wang, Yuelong Shu
BACKGROUND: Since the highly pathogenic H5N1 influenza caused thousands of deaths of wild bird in this area in 2005, Qinghai Lake in China has become a hot spot for study of the influence of avian influenza to migratory wild birds. However, the ecology and evolution of low pathogenic avian influenza virus in this region are limited. This project-based avian influenza surveillance in Qinghai lake region was initiated in year 2012. METHOD: Samples of wild bird feces and lake surface water were collected in Qinghai Lake in year 2012...
September 18, 2017: Virology Journal
https://www.readbyqxmd.com/read/28922621/a-21-winter-seasons-retrospective-study-of-antibody-response-after-influenza-vaccination-in-elderly-60-85%C3%A2-years-old-and-very-elderly-85%C3%A2-years-old-institutionalized-subjects
#7
Emilia Nunzi, Anna Maria Iorio, Barbara Camilloni
Influenza vaccination is considered the best mean for preventing the higher rates of mortality associated with influenza virus infection in the elderly as compared with younger people. Since the number of very elderly subjects, aged >85 years, is rapidly increasing, and some authors reported increments in influenza-associated mortality with age, the aim of this study was to increase the limited information available on the immunogenicity of the influenza vaccines in this age group. This was a retrospective study which analyzed the antibody response induced by commercially available trivalent inactivated influenza vaccines in 1491 elderly subjects (60-85 years old) and 1139 very elderly subjects (>85 years old) during 21 winter seasons included between 1993-1994 and 2014-2015...
September 18, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28922566/streptococcus-pneumoniae-and-chronic-endobronchial-infections-in-childhood
#8
Kim M Hare, Amanda J Leach, Heidi C Smith-Vaughan, Anne B Chang, Keith Grimwood
Streptococcus pneumoniae (pneumococcus) is the main cause of bacterial pneumonia worldwide and has been studied extensively in this context. However, its role in chronic endobronchial infections and accompanying lower airway neutrophilic infiltration has received little attention. Severe and recurrent pneumonia are risk factors for chronic suppurative lung disease (CSLD) and bronchiectasis; the latter causes considerable morbidity and, in some populations, premature death in children and adults. Protracted bacterial bronchitis (PBB) is another chronic endobronchial infection associated with substantial morbidity...
September 18, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28922045/monomeric-m2e-antigen-in-vesivax%C3%A2-liposomes-stimulates-protection-against-type-a-strains-of-influenza-comparable-to-liposomes-with-multimeric-forms-of-m2e
#9
J P Adler-Moore, W Ernst, H Kim, N Ward, S M Chiang, T Do, G Fujii
Given the interest in the ectodomain of the matrix 2 (M2e) channel protein as a target for development of a universal influenza vaccine, we examined the role of the antigen configuration of M2e in generating a protective immune response. A series of M2e mutations and a truncated M2e segment were prepared as a means of controlling the formation of monomer, dimer, and higher order multimeric forms of M2e. Each of these M2e peptides was incorporated into a liposome-based vaccine technology platform previously shown to stimulate a protective response to influenza A infection using M2e as a mixture of monomers, dimers and multimers (L-M2e1-HD/MPL)...
September 18, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28921579/material-basis-studies-of-anti-influenza-a-active-ingredients-in-tanreqing-injection
#10
Haiyan Zhu, Mingchang Chen, Xunlong Shi, Chenchen Shi, Chenggang Huang
Tanreqing Injection (TRQ) has been used primarily in treating infections of the upper respiratory tract and serious influenza in China, as a classical compound herbal recipe. TRQ had been demonstrated its effects of clearing heat, eliminating phlegm, detoxification, reducing inflammation and alleviating cough. The survival rate, histopathology of lungs and viral titers in mice were evaluated in this study to verify the curative effect of TRQ. However, there is not enough information about the components. In the present study, a high-performance and practical LC/QTOF/MS method was developed for characterization and identification of the natural ingredients in TRQ...
September 15, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28921456/blood-brain-barrier-in-a-haemophilus-influenzae-type-a-in-vitro-infection-role-of-adenosine-receptors-a2a-and-a2b
#11
N Caporarello, M Olivieri, M Cristaldi, M Scalia, M A Toscano, C Genovese, A Addamo, M Salmeri, G Lupo, C D Anfuso
The blood-brain barrier (BBB) is mainly made up of tightly connected microvascular endothelial cells (BMECs), surrounded by pericytes (BMPCs) which regulate BBB tightness by providing soluble factors that control endothelial proliferation. Haemophilus influenzae type a (Hia) is able to reach the BBB, crossing it, thus causing meningitis. In this study, by using an in vitro model of BBB, performed with human BMECs and human BMPCs in co-culture, we demonstrated that, after Hia infection, the number of hBMPCs decreased whereas the number of hBMECs increased in comparison with non-infected cells...
September 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28918667/poor-outcomes-among-elderly-patients-hospitalized-for-influenza-like-illness
#12
Mine Durusa Tanriover, Tülay Bagci Bosi, Lale Ozisik, Emre Bilgin, Özlem Güzel Tunçcan, Özge Özgen, Necla Tülek, Metin Özsoy, Hasan Tezer, Tugba Bedir Demirdağ, Ates Kara, Sevgen Tanir Basaranoglu, Kubra Aykac, Aslinur Ozkaya-Parlakay, Belgin Gulhan, Serhat Unal
BACKGROUND AND OBJECTIVE: Global Influenza Hospital Surveillance Network is a worldwide initiative that aims to document the burden of influenza infections among acute admissions and the vaccine effectiveness in particular countries. As a partner of this platform, we aimed to determine the frequency of influenza infections among acute admissions with influenza like illness and the outcomes of the enrolled patients during the 2015-2016 influenza season in selected hospitals in Turkey. PATIENTS AND METHODS: The investigators screened the hospital admission registries, chart review or available records, and screened all patients hospitalized in the previous 24-48 hours or overnight in the predefined wards or emergency room...
September 18, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28918638/a-rapid-blood-test-to-determine-the-active-status-and-duration-of-acute-viral-infection
#13
Tianyu Zheng, Caroline Finn, Christopher Parrett, Kunal Dhume, Ji Hae Hwang, David Sidhom, Tara Strutt, Yuen Yee Li Sip, Karl McKinstry, Qun Huo
The ability to rapidly detect and diagnose acute viral infections is crucial for infectious disease control and management. Serology testing for the presence of virus-elicited antibodies in blood is one of the methods used commonly for clinical diagnosis of viral infections. However, standard serology-based tests have a significant limitation: they cannot easily distinguish active from past, historical infections. As a result, it is difficult to determine whether a patient is currently infected with a virus or not, and on an optimal course of action, based off of positive serology testing responses...
September 17, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28918004/the-role-of-oxidative-stress-in-influenza-virus-infection
#14
Miaomiao Liu, Fangzhao Chen, Teng Liu, Feimin Chen, Shuwen Liu, Jie Yang
Virus-induced oxidative stress plays an important role in the regulation of the host immune system. In this review, we provide backgrounds of the pathogenic mechanism of oxidative stress induced by influenza virus and the specific oxidant-sensitive pathways, and highlight that antioxidant is one of the effective strategies against influenza virus infection.
September 13, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28916759/influenza-d-in-italy-towards-a-better-understanding-of-an-emerging-viral-infection-in-swine
#15
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/28916522/viral-infection-sensitizes-human-fetal-membranes-to-bacterial-lipopolysaccharide-by-mertk-inhibition-and-inflammasome-activation
#16
Sarah N Cross, Julie A Potter, Paulomi Aldo, Ja Young Kwon, Mary Pitruzzello, Mancy Tong, Seth Guller, Carla V Rothlin, Gil Mor, Vikki M Abrahams
Chorioamnionitis, premature rupture of fetal membranes (FMs), and subsequent preterm birth are associated with local infection and inflammation, particularly IL-1β production. Although bacterial infections are commonly identified, other microorganisms may play a role in the pathogenesis. Because viral pandemics, such as influenza, Ebola, and Zika, are becoming more common, and pregnant women are at increased risk for associated complications, this study evaluated the impact that viral infection had on human FM innate immune responses...
September 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28915920/current-situation-of-h9n2-subtype-avian-influenza-in-china
#17
REVIEW
Min Gu, Lijun Xu, Xiaoquan Wang, Xiufan Liu
In China, H9N2 subtype avian influenza outbreak is firstly reported in Guangdong province in 1992. Subsequently, the disease spreads into vast majority regions nationwide and has currently become endemic there. Over vicennial genetic evolution, the viral pathogenicity and transmissibility have showed an increasing trend as year goes by, posing serious threat to poultry industry. In addition, H9N2 has demonstrated significance to public health as it could not only directly infect mankind, but also donate partial or even whole cassette of internal genes to generate novel human-lethal reassortants like H5N1, H7N9, H10N8 and H5N6 viruses...
September 15, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28914861/-kagocel-in-the-therapy-of-influenza-and-acute-respiratory-viral-infections-data-analysis-and-systematization-from-the-results-of-preclinical-and-clinical-trials
#18
T V Sologub, V V Tsvetkov
The article provides the summarized data of clinical trials evaluating the efficacy and safety of kagocel used to prevent and treat influenza and acute respiratory viral infections of different etiologies. The results of numerous preclinical and clinical trials suggest that the kagocel substance is highly safe and that it is appropriate to use the drug for the treatment and prevention of influenza and acute respiratory viral infections of another etiology.
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28913988/prevalence-of-respiratory-viral-infections-in-korean-adult-asthmatics-with-acute-exacerbations-comparison-with-those-with-stable-state
#19
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
#20
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
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