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https://www.readbyqxmd.com/read/29777868/comparative-efficacy-and-safety-of-different-antiviral-agents-for-cytomegalovirus-prophylaxis-in-allogeneic-hematopoietic-cell-transplantation-a-systematic-review-and-meta-analysis
#1
Nico Gagelmann, Per Ljungman, Jan Styczynski, Nicolaus Kröger
Over the past 25 years, several randomized controlled trials have investigated the efficacy of different antiviral agents for cytomegalovirus (CMV) prophylaxis in allogeneic hematopoietic-cell transplantation. We performed a systematic literature review, conventional meta-analysis and network meta-analysis using a random-effects model and risk ratios (RR) with corresponding 95% confidence intervals (CI) as effect estimates. Fifteen randomized controlled trials were identified, including seven different antiviral agents: acyclovir, ganciclovir, maribavir, brincidofovir, letermovir, valacyclovir, and vaccine...
May 16, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29777766/immune-response-and-protective-effect-against-spring-viremia-of-carp-virus-induced-by-intramuscular-vaccination-with-a-swcnts-dna-vaccine-encoding-matrix-protein
#2
Chen Zhang, Zhao Zhao, Gao-Yang Liu, Jian Li, Gao-Xue Wang, Bin Zhu
To elicit the immune protective of vaccine against the highly contagious and pathogenic disease caused by spring viremia of carp virus (SVCV), a novel functionalized single-walled carbon nanotubes (SWCNTs) were applied as a delivery vehicle for DNA vaccine. In this study, we report a SWCNTs-DNA vaccine encoding matrix protein of SVCV which, when injected in the muscle at a dose of 10 μg SWCNTs-pcDNA-M vaccine, confers up to 51.3% protection against intraperitoneal challenge with SVCV. In addition, SWCNTs as a promising vehicle can enhance about 17...
May 16, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29777445/a-reverse-genetics-system-for-enterovirus-d68-using-human-rna-polymerase-i
#3
Minglei Pan, Shuai Gao, Zhenwei Zhou, Keke Zhang, Sihua Liu, Zhiyun Wang, Tao Wang
Human enterovirus D68 (EV-D68) is a highly contagious virus, which causes respiratory tract infections. However, no effective vaccines are currently available for controlling EV-D68 infection. Here, we developed a reverse genetics system to recover EV-D68 minireplicons and infectious EV-D68 from transfected plasmids using the RNA polymerase I (Pol I) promoter. The EV-D68 minireplicons contained the luciferase reporter gene, which flanked by the non-coding regions of the EV-D68 RNA. The luciferase signals could be detected in cells after transfection and Pol I promoter-mediated luciferase signal was significantly stronger than that mediated by the T7 promoter...
May 17, 2018: Virus Genes
https://www.readbyqxmd.com/read/29777102/a-virus-like-particle-based-tetravalent-vaccine-for-hand-foot-and-mouth-disease-elicits-broad-and-balanced-protective-immunity
#4
Wei Zhang, Wenlong Dai, Chao Zhang, Yu Zhou, Pei Xiong, Shuxia Wang, Xiaohua Ye, Qingwei Liu, Dongming Zhou, Zhong Huang
Hand, foot, and mouth disease (HFMD) is an infectious disease that mainly affects infants and children, causing considerable morbidity and mortality worldwide. HFMD is commonly caused by enterovirus 71 (EV71) and coxsackieviruses A16 (CVA16), A6 (CVA6), and A10 (CVA10). Formalin-inactivated EV71 vaccines are currently available in China; however, these vaccines fail to confer cross-protection against infections by other HFMD-causing enteroviruses, highlighting the necessity of developing a multivalent HFMD vaccine...
May 18, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29776921/determining-the-pneumococcal-conjugate-vaccine-coverage-required-for-indirect-protection-against-vaccine-type-pneumococcal-carriage-in-low-and-middle-income-countries-a-protocol-for-a-prospective-observational-study
#5
Jocelyn Chan, Cattram D Nguyen, Jana Y R Lai, Eileen M Dunne, Ross Andrews, Christopher C Blyth, Siddhartha Datta, Kim Fox, Rebecca Ford, Jason Hinds, Sophie La Vincente, Deborah Lehmann, Ruth Lim, Tuya Mungun, Paul N Newton, Rattanaphone Phetsouvanh, Willam S Pomat, Anonh Xeuatvongsa, Claire von Mollendorf, David A B Dance, Catherine Satzke, Kim Muholland, Fiona M Russell
INTRODUCTION: Pneumococcal conjugate vaccines (PCVs) prevent disease through both direct protection of vaccinated individuals and indirect protection of unvaccinated individuals by reducing nasopharyngeal (NP) carriage and transmission of vaccine-type (VT) pneumococci. While the indirect effects of PCV vaccination are well described, the PCV coverage required to achieve the indirect effects is unknown. We will investigate the relationship between PCV coverage and VT carriage among undervaccinated children using hospital-based NP pneumococcal carriage surveillance at three sites in Asia and the Pacific...
May 18, 2018: BMJ Open
https://www.readbyqxmd.com/read/29776754/willingness-and-influential-factors-of-parents-to-vaccinate-their-children-with-novel-inactivated-enterovirus-71-vaccines-in-guangzhou-china
#6
Tiegang Li, Hui Wang, Yin Lu, Qin Li, Chun Chen, Dahu Wang, Meixia Li, Yilan Li, Jianyun Lu, Zongqiu Chen, Yu Ma, Wenhui Liu, Mengmeng Ma, Di Wu, Jiachun Lu, Zhicong Yang
Hand, foot and mouth disease (HFMD) primarily affects children younger than 5 years of age. Recently, HFMD has ranked as the top notifiable infectious disease in China. In December 2015, China approved two novel inactivated enterovirus 71 vaccines (EV71 vaccines) for HFMD. Parents' acceptance is often essential for vaccination program success. The goal of this study was to identify willingness and influential factors to vaccinate among parents of kindergarteners in Guangzhou, China. A cross-sectional survey of face-to-face interviews was conducted from March to July 2016...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776753/genetic-and-antigenic-relationship-of-foot-and-mouth-disease-virus-serotype-o-isolates-with-the-vaccine-strain-o1-bfs
#7
Wanhong Xu, Zhidong Zhang, Charles Nfon, Ming Yang
Foot-and-mouth disease serotype O viruses (FMDV/O) are responsible for the most outbreaks in FMD endemic countries. O1/BFS is one of the recommended FMD/O vaccine strains by World Reference Laboratory for FMD. In the current study, FMDV/O1 BFS vaccine strain and serotype O field isolates (45) were analyzed phylogenetically and antigenically to gain more insight into the genetic and antigenic characteristics of the vaccine strain and field isolates. O1/BFS showed similarity with 89% of the field isolates using a virus neutralization test (VNT)...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776752/reintroducing-opv-in-israel-on-the-journey-to-global-polio-eradication-estimation-at-a-low-rate-of-contraindicated-population
#8
Chen Rosenberg Danziger, Emilia Anis, Ethel-Sherry Gordon, Itamar Grotto, Yehuda L Danon
INTRODUCTION: The 2013 reemergence of wild poliovirus in Israel led to the reinstatement of a routine OPV vaccination. Fearing VAPP in immunocompromised, the MOH regulated contraindications for vaccination candidates and household contacts. In this study we estimate the size of the contraindicated population to OPV vaccination. METHOD: We studied vaccination candidates aged 2-9 and 14-23 months and probable household contacts. Using the rate of contraindications extracted for each study group from a medical records database, a statistical model was built to estimate the probability of contraindications in candidates...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776751/development-of-an-opsonophagocytic-killing-assay-for-group-a-streptococcus
#9
Scott Jones, Nicole J Moreland, Marta Zancolli, Jeremy Raynes, Jacelyn M S Loh, Pierre R Smeesters, Shiranee Sriskandan, Jonathan R Carapetis, John D Fraser, David Goldblatt
Group A Streptococcus (GAS) or Streptococcus pyogenes is responsible for an estimated 500,000 deaths worldwide each year. Protection against GAS infection is thought to be mediated by phagocytosis, enhanced by bacteria-specific antibody. There are no licenced GAS vaccines, despite many promising candidates in preclinical and early stage clinical development, the most advanced of which are based on the GAS M-protein. Vaccine progress has been hindered, in part, by the lack of a standardised functional assay suitable for vaccine evaluation...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776750/safety-and-immunogenicity-of-a-vi-dt-typhoid-conjugate-vaccine-phase-i-trial-in-healthy-filipino-adults-and-children
#10
Maria Rosario Capeding, Samuel Teshome, Tarun Saluja, Khalid Ali Syed, Deok Ryun Kim, Ju Yeon Park, Jae Seung Yang, Yang Hee Kim, Jiwook Park, Sue-Kyoung Jo, Yun Chon, Sudeep Kothari, Seon-Young Yang, Dong Soo Ham, Ji Hwa Ryu, Hee-Seong Hwang, Ju-Hwan Mun, Julia Lynch, Jerome Kim, Hun Kim, Jean-Louis Excler, Sushant Sahastrabuddhe
BACKGROUND: Typhoid fever remains a major public health problem in low- and middle-income countries where children aged 2-14 years bear the greatest burden. Vi polysaccharide is poorly immunogenic in children <2 years of age, and protection in adults is modest. The limitations of Vi polysaccharide vaccines can be overcome by conjugation of the Vi to a carrier protein. A typhoid conjugate vaccine composed of Vi polysaccharide conjugated to diphtheria toxoid (Vi-DT) has been developed...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776749/determinants-of-cost-of-routine-immunization-programme-in-india
#11
Susmita Chatterjee, Arpita Ghosh, Palash Das, Nicolas A Menzies, Ramanan Laxminarayan
The costs of delivering routine immunization services in India vary widely across facilities, districts and states. Understanding the factors influencing this cost variation could help predict future immunization costs and suggest approaches for improving the efficiency of service provision. We examined determinants of facility cost for immunization services based on a nationally representative sample of sub-centres and primary health centres (99 and 89 facilities, respectively) by regressing logged total facility costs, both including and excluding vaccine cost, against several explanatory variables...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776611/nasal-delivery-of-chitosan-alginate-nanoparticle-encapsulated-bee-apis-mellifera-venom-promotes-antibody-production-and-viral-clearance-during-porcine-reproductive-and-respiratory-syndrome-virus-infection-by-modulating-t-cell-related-responses
#12
Jina Lee, Yun-Mi Kim, Ju-Heon Kim, Cheong-Weon Cho, Jong-Woon Jeon, Jin-Kyu Park, Sang-Ho Lee, Bock-Gie Jung, Bong-Joo Lee
In this study, we administered specially developed chitosan/alginate nanoparticle encapsulated BV (CH/AL-BV) which has slow-releasing properties and mucosal adhesiveness to pig via nasal route and evaluate whether it can facilitate systemic immune response and improve clearance of porcine reproductive and respiratory syndrome virus (PRRSV). The CH/AL-BV-administered group with PRRSV vaccination showed significantly enhanced Th1-related responses including a high population of CD4+ T lymphocyte and cytokine mRNA levels including interferon-gamma (IFN-γ) and interleukin (IL)-12 and increased PRRSV-specific IgG levels...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29776594/gearing-up-t-cell-immunotherapy-in-cervical-cancer
#13
REVIEW
Shilpa Raghuvanshi Chauhan, Mausumi Bharadwaj
The World Health Organization estimates more than 270,000 deaths annually by cervical cancer. Present vaccines are prophylactic in nature which cannot treat huge bulk of cervical cancer patients worldwide. Available therapies like radiotherapy, chemotherapy, or surgery are not effective in high-grade lesion, and hence, there is an unmet medical need for an effective form of therapy. T cells play a significant role in cervical cancer pathogenesis as human papilloma virus uses multiple mechanisms that dodge host T-cell immune-surveillance aiding in persistence of infection and establishment of cancer...
April 22, 2018: Current Problems in Cancer
https://www.readbyqxmd.com/read/29776104/interplay-between-cost-and-benefits-triggers-nontrivial-vaccination-uptake
#14
Benjamin Steinegger, Alessio Cardillo, Paolo De Los Rios, Jesús Gómez-Gardeñes, Alex Arenas
The containment of epidemic spreading is a major challenge in science. Vaccination, whenever available, is the best way to prevent the spreading, because it eventually immunizes individuals. However, vaccines are not perfect, and total immunization is not guaranteed. Imperfect immunization has driven the emergence of antivaccine movements that totally alter the predictions about the epidemic incidence. Here, we propose a mathematically solvable mean-field vaccination model to mimic the spontaneous adoption of vaccines against influenzalike diseases and the expected epidemic incidence...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29775847/strategies-for-a-multi-stage-neutralizing-antibody-based-hiv-vaccine
#15
REVIEW
Raiees Andrabi, Jinal N Bhiman, Dennis R Burton
A critical property of a prophylactic HIV vaccine is likely to be its ability to elicit broadly neutralizing antibodies (bnAbs). BnAbs typically have multiple unusual features and are generated in a fraction of HIV-infected individuals through complex pathways. Current vaccine design approaches seek to trigger rare B cell precursors and then steer affinity maturation toward bnAbs in a multi-stage multi-component immunization approach. These vaccine design strategies have been facilitated by molecular descriptions of bnAb interactions with stabilized HIV trimers, the use of an array of sophisticated approaches for immunogen design, the development of novel animal models for immunogen evaluation and advanced technologies to interrogate antibody responses...
May 15, 2018: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29775725/anti-hepatitis-c-virus-activity-and-synergistic-effect-of-nymphaea-alba-extracts-and-bioactive-constituents-in-liver-infected-cells
#16
Sidra Rehman, Usman Ali Ashfaq, Bushra Ijaz, Sheikh Riazuddin
BACKGROUND: Without an effective vaccine, hepatitis C virus (HCV) remains a global threat, inflicting 170-300 million carriers worldwide at risk of cirrhosis and hepatocellular carcinoma (HCC). Though various direct acting antivirals have been redeemed the hepatitis C treatment, a few restraints persist including possible side effects, viral resistance emergence, excessive cost which restricts its availability to a common person. HYPOTHESIS: There is no preventive HCV vaccine available today so the discovery of potent antiviral natural flora and their bioactive constituents may help to develop preventive cures against HCV infection...
May 15, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29775680/assessing-the-effects-of-daily-commuting-in-two-patch-dengue-dynamics-a-case-study-of-cali-colombia
#17
Edwin Barrios, Sunmi Lee, Olga Vasilieva
There are many infectious diseases that can be spread by daily commuting of people and dengue fever is one of them. The absence of vaccine and irregularities in ongoing vector control programs make this disease the most frequent and persistent in many tropical and subtropical regions of the world. This paper targets to access the effects of daily commuting on dengue transmission dynamics by using a deterministic two-patch model fitted to observed data gathered in Cali, Colombia where dengue fever is highly persistent and exhibits endemo-epidemic patterns...
May 15, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29775667/identification-of-novel-hla-a11-restricted-t-cell-epitopes-in-the-ebola-virus-nucleoprotein
#18
Dan Li, Pei Li, Nianping Song, Yuting Jiang, Yang Zeng, Guangyu Zhao, Yunzhi Fa, Huahu Ye, Yuchun Lone, Yusen Zhou, Shihui Sun, Lin Zeng
The Ebola virus (EBOV) is a very contagious virus that is highly fatal in humans and animals. The largest epidemic was in West Africa in 2014, in which over 11,000 people died. However, to date, there are no licensed vaccines against it. Studies show that CD4+ and CD8+ T-cell responses, especially cytotoxic T-lymphocyte (CTL) responses, play key roles in protecting individuals from EBOV infection. Since HLA-restricted epitope vaccines are likely to be effective and safe immunization strategies for infectious diseases, the present study screened for CTL epitopes in the EBOV-nucleoprotein that are restricted by HLA-A11 (a common allele in Chinese people)...
May 15, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29775453/ts-hsp70-induces-protective-immunity-against-trichinella-spiralis-infection-in-mouse-by-activating-dendritic-cells-through-tlr2-and-tlr4
#19
Rui Zhang, Qing Sun, Yi Chen, Ximeng Sun, Yuan Gu, Zhang Zhao, Yuli Cheng, Limei Zhao, Jingjing Huang, Bin Zhan, Xinping Zhu
BACKGROUND: Trichinellosis is a serious food-borne parasitic zoonosis worldwide. In the effort to develop vaccine against Trichinella infection, we have identified Trichinella spiralis Heat shock protein 70 (Ts-Hsp70) elicits partial protective immunity against T. spiralis infection via activating dendritic cells (DCs) in our previous study. This study aims to investigate whether DCs were activated by Ts-Hsp70 through TLR2 and/or TLR4 pathways. METHODS AND FINDINGS: After blocking with anti-TLR2 and TLR4 antibodies, the binding of Ts-Hsp70 to DCs was significantly reduced...
May 18, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29775037/recommendations-for-safe-vaccination-in-children-at-the-risk-of-taking-allergic-reactions-to-vaccine-components
#20
(no author information available yet)
Vaccines are one of the most important advances in medicine as a public health tool for the control of immunopreventable diseases. Occasionally, adverse reactions may occur. If a child has a reaction to a vaccine, it is likely to disrupt his immunization schedule with risks to himself and the community. This establishes the importance of correctly diagnosing a possible allergy and defining appropriate behavior. Allergic reactions to vaccines may be due to the immunogenic component, to the residual proteins in the manufacturing process and to antimicrobial agents, stabilizers, preservatives and any other element used in the manufacturing process...
April 1, 2018: Archivos Argentinos de Pediatría
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