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High dose influenza vaccine

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https://www.readbyqxmd.com/read/29239682/safety-and-immunogenicity-of-a-seasonal-trivalent-inactivated-split-influenza-vaccine-a-phase-i-randomized-clinical-trial-in-healthy-serbian-adults
#1
Goran Stevanovic, Lidija Lavadinovic, Svetlana Filipovic Vignjevic, Renée Holt, Katarina Ilic, Francesco Berlanda Scorza, Erin Sparrow, Vera Stoiljkovic, Guido Torelli, Tamra Madenwald, Muriel Socquet, Aleksandra Barac, Yordanka Ilieva-Borisova, Mijomir Pelemis, Jorge Flores
This study was a phase I double-blind, randomized, placebo-controlled trial to evaluate the safety and immunogenicity of a Serbian-produced seasonal trivalent split, inactivated influenza vaccine in healthy adults. The vaccine was manufactured in eggs by the Torlak Institute of Virology, Vaccines and Sera, Belgrade, Serbia and contained A/H1N1, A/H3N2 and B viruses. The clinical trial took place at the Clinical Center of Serbia in Belgrade. Sixty healthy volunteers, aged 18-45 years, were enrolled in the trial...
December 14, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29237061/the-comparative-effectiveness-of-high-dose-versus-standard-dose-influenza-vaccines-in-preventing-post-influenza-deaths
#2
Karl Madaras-Kelly, Richard Remington, Hayli Hruza, Dong Xu
No abstract text is available yet for this article.
December 9, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29230222/single-dose-of-consensus-hemagglutinin-based-virus-like-particles-vaccine-protects-chickens-against-divergent-h5-subtype-influenza-viruses
#3
Peipei Wu, Jihu Lu, Xuehua Zhang, Mei Mei, Lei Feng, Daxin Peng, Jibo Hou, Sang-Moo Kang, Xiufan Liu, Yinghua Tang
The H5 subtype highly pathogenic avian influenza (HPAI) virus is one of the greatest threats to global poultry industry. To develop broadly protective H5 subunit vaccine, a recombinant consensus HA sequence (rHA) was constructed and expressed in virus-like particles (rHA VLPs) in the baculovirus-insect cell system. The efficacy of the rHA VLPs vaccine with or without immunopotentiator (CVCVA5) was assessed in chickens. Compared to the commercial Re6 or Re6-CVCVA5 vaccines, single dose immunization of chickens with rHA VLPs or rHA-CVCVA5 vaccines induced higher levels of serum hemagglutinin inhibition titers and neutralization titers, mucosal antibodies, IFN-γ and IL-4 cytokines in sera, and cytotoxic T lymphocyte responses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29223454/preparation-characterization-and-immunological-evaluation-of-alginate-nanoparticles-loaded-with-whole-inactivated-influenza-virus-dry-powder-formulation-for-nasal-immunization-in-rabbits
#4
Solmaz Dehghan, Masoumeh Tavassoti Kheiri, Khalil Abnous, Maryam Eskandari, Mohsen Tafaghodi
It has become important to explore more efficient and feasible influenza vaccines, since epidemics of influenza virus cause hundreds of thousands of deaths all around the world. Improving immunogenicity of parentral influenza vaccines has given rise to mucosal delivery routes. In this study, alginate nanoparticles (NPs) were efficiently synthetized by ionic gelation method and influenza virus and CpG ODN or Quillaja Saponin (QS) adjuvants were actively incorporated into alginate NPs. The prepared particles were evaluated for both humoral and cellular immune responses in rabbits' nostrils...
December 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29214495/comparison-of-anti-influenza-virus-activity-and-pharmacokinetics-of-oseltamivir-free-base-and-oseltamivir-phosphate
#5
Jin Soo Shin, Keun Bon Ku, Yejin Jang, Yi-Seul Yoon, Daeho Shin, Oh Seung Kwon, Yun Young Go, Seong Soon Kim, Myoung Ae Bae, Meehyein Kim
Influenza viruses are major human respiratory pathogens that cause high morbidity and mortality worldwide. Currently, prophylactic vaccines and therapeutic antiviral agents are used to prevent and control influenza virus infection. Oseltamivir free base (OSV-FB), a modified generic antiviral drug of Tamiflu (oseltamivir phosphate, OSV-P), was launched in the Republic of Korea last year. Here, we examine the bioequivalence of these two compounds by assessing their antiviral efficacy in infected cells and in a mouse model...
December 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/29201630/avoidance-of-harm-from-treatment-for-anca-associated-vasculitis
#6
REVIEW
Catherine King, Lorraine Harper
Purpose of review With established immunosuppressant treatment regimens for anti-neutrophil cytoplasm antibody-associated vasculitides (AAV), prognosis has significantly improved. The mainstay of treatment still comprises high-dose corticosteroids and cyclophosphamide for severe forms, although rituximab is being increasingly utilised instead of cyclophosphamide as induction therapy. AAV patients experience an excess of infections, malignancies and cardiovascular events as compared to the general population, which is a combination of the systemic inflammatory process associated with vasculitis and the adverse events from treatment...
2017: Current Treatment Options in Rheumatology
https://www.readbyqxmd.com/read/29177407/a-two-centre-randomised-trial-of-an-additional-early-dose-of-measles-vaccine-effects-on-mortality-and-measles-antibody-levels
#7
Ane B Fisker, Eric Nebie, Anja Schoeps, Cesario Martins, Amabelia Rodrigues, Alphonse Zakane, Moubassira Kagone, Stine Byberg, Sanne M Thysen, Justin Tiendrebeogo, Boubacar Coulibaly, Osman Sankoh, Heiko Becher, Hilton C Whittle, Fiona R M van der Klis, Christine S Benn, Ali Sie, Olaf Müller, Peter Aaby
Background: Besides protecting against measles, measles vaccine (MV) may have beneficial non-specific effects. We tested the effect of an additional early MV on mortality and measles antibody levels. Methods: Children aged 4-7 months in two rural health and demographic surveillance sites in Burkina Faso and Guinea-Bissau were randomised 1:1 to an extra early standard dose of MV (Edmonston-Zagreb strain) or no extra MV 4 weeks after the third diphtheria-tetanus-pertussis-hepatitis B-Haemophilus-influenzae-type-b vaccine...
November 21, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29173310/the-effectiveness-of-trivalent-inactivated-influenza-vaccine-in-children-with-acute-leukemia
#8
April Sykes, Elsie Gerhardt, Li Tang, Elisabeth E Adderson
OBJECTIVE: The objective of this study was to determine the effectiveness of trivalent inactivated influenza vaccine (TIV) for the prevention of laboratory-confirmed influenza and influenza-like illnesses (ILI) among children and adolescents receiving therapy for acute leukemia. STUDY DESIGN: A retrospective review of the demographic and clinical characteristics of 498 patients at a pediatric cancer center who received therapy for acute leukemia during 3 successive influenza seasons (2010-2011 through 2012-2013)...
December 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29167344/comparison-of-the-efficacy-of-n9-neuraminidase-specific-monoclonal-antibodies-against-influenza-a-h7n9-virus-infection
#9
Hongquan Wan, Li Qi, Jin Gao, Laura K Couzens, Lianlian Jiang, Yamei Gao, Zong-Mei Sheng, Sharon Fong, Megan Hahn, Surender Khurana, Jeffery K Taubenberger, Maryna C Eichelberger
The fifth wave of A(H7N9) virus infection in China from 2016 to 2017 caused great concern due to the large number of individuals infected, the isolation of drug-resistant viruses and emergence of highly pathogenic strains. Antibodies against neuraminidase (NA) provide added benefit to hemagglutinin-specific immunity and may be an important contributor to the effectiveness of A(H7N9) vaccines. We generated a panel of mouse monoclonal antibodies (MAbs) to identify antigenic domains on NA of the novel A(H7N9) virus and compared their functional properties...
November 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29132992/measuring-the-timeliness-of-childhood-vaccinations-using-cohort-data-and-routine-health-records-to-evaluate-quality-of-immunisation-services
#10
Suzanne Walton, Mario Cortina-Borja, Carol Dezateux, Lucy J Griffiths, Karen Tingay, Ashley Akbari, Amrita Bandyopadhyay, Ronan A Lyons, Helen Bedford
BACKGROUND: To achieve full benefits of vaccination programmes, high uptake and timely receipt of vaccinations are required. OBJECTIVES: To examine uptake and timeliness of infant and pre-school booster vaccines using cohort study data linked to health records. METHODS: We included 1782 children, born between 2000 and 2001, participating in the Millennium Cohort Study and resident in Wales, whose parents gave consent for linkage to National Community Child Health Database records at the age seven year contact...
November 10, 2017: Vaccine
https://www.readbyqxmd.com/read/29108012/oral-immunization-of-a-non-recombinant-lactococcus-lactis-surface-displaying-influenza-hemagglutinin-1-ha1-induces-mucosal-immunity-in-mice
#11
Pui-Fong Jee, Vunjia Tiong, Meng-Hooi Shu, Jing-Jing Khoo, Won Fen Wong, Raha Abdul Rahim, Sazaly AbuBakar, Li-Yen Chang
Mucosal immunization of influenza vaccine is potentially an effective approach for the prevention and control of influenza. The objective of the present study was to evaluate the ability of oral immunization with a non-recombinant Lactococcus lactis displaying HA1/L/AcmA recombinant protein, LL-HA1/L/AcmA, to induce mucosal immune responses and to accord protection against influenza virus infection in mice. The LL-HA1/L/AcmA was orally administered into mice and the immune response was evaluated. Mice immunized with LL-HA1/L/AcmA developed detectable specific sIgA in faecal extract, small intestine wash, BAL fluid and nasal fluid...
2017: PloS One
https://www.readbyqxmd.com/read/29095807/vaccination-coverage-among-children-aged-19-35-months-united-states-2016
#12
Holly A Hill, Laurie D Elam-Evans, David Yankey, James A Singleton, Yoonjae Kang
Vaccination is the most effective intervention to reduce morbidity and mortality from vaccine-preventable diseases in young children (1). Data from the 2016 National Immunization Survey-Child (NIS-Child) were used to assess coverage with recommended vaccines (2) among children aged 19-35 months in the United States. Coverage remained ≥90% for ≥3 doses of poliovirus vaccine (91.9%), ≥1 dose of measles, mumps, and rubella vaccine (MMR) (91.1%), ≥1 dose of varicella vaccine (90.6%), and ≥3 doses of hepatitis B vaccine (HepB) (90...
November 3, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29090982/feasibility-of-a-cluster-randomized-influenza-vaccination-trial-in-u-s-nursing-homes-lessons-learned
#13
Stefan Gravenstein, H Edward Davidson, Lisa F Han, Jessica A Ogarek, Roshani Dahal, Pedro L Gozalo, Monica Taljaard, Vincent Mor
Influenza severity increases and vaccine effectiveness decreases with age. High-Dose influenza vaccine (HD) with quadruple the antigen of standard-dose (SD) vaccine is more efficacious in community-dwelling persons 65 years and older. We evaluated the feasibility of recruiting and randomizing Medicare-care certified nursing homes (NHs) for a pragmatic cluster-randomized trial comparing HD vs. SD (NCT1720277). Residents were long-stay and at least 65 years old. NH leadership agreed to standard of care random assignment with HD (Fluzone® High-Dose) or SD (Fluzone®) influenza vaccine for their facility for the 2012-2013 influenza season...
November 1, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29070858/soloxolone-methyl-inhibits-influenza-virus-replication-and-reduces-virus-induced-lung-inflammation
#14
Andrey V Markov, Alexandra V Sen'kova, Dawid Warszycki, Oksana V Salomatina, Nariman F Salakhutdinov, Marina A Zenkova, Evgeniya B Logashenko
Highly pathogenic influenza viruses pose a serious public health threat to humans. Although vaccines are available, new antivirals are needed to efficiently control disease progression and virus transmission due to the emergence of drug-resistant viral strains. In this study, we describe the anti-viral properties of Soloxolone methyl (SM) (methyl 2-cyano-3,12-dioxo-18βH-olean-9(11),1(2)-dien-30-oate, a chemical derivative of glycyrrhetinic acid) against the flu virus. Anti-flu efficacy studies revealed that SM exhibits antiviral activity against the H1N1 influenza A virus in a dose-dependent manner causing a more than 10-fold decrease in virus titer and a reduction in the expression of NP and M2 viral proteins...
October 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29040317/economic-benefits-of-sharing-and-redistributing-influenza-vaccines-when-shortages-occurred
#15
Sheng-I Chen
BACKGROUND: Recurrent influenza outbreak has been a concern for government health institutions in Taiwan. Over 10% of the population is infected by influenza viruses every year, and the infection has caused losses to both health and the economy. Approximately three million free vaccine doses are ordered and administered to high-risk populations at the beginning of flu season to control the disease. The government recommends sharing and redistributing vaccine inventories when shortages occur...
2017: PloS One
https://www.readbyqxmd.com/read/28958811/parental-perceptions-of-childhood-seasonal-influenza-vaccination-in-singapore-a-cross-sectional-survey
#16
Mabel S F Low, Hweeyong Tan, Mikael Hartman, Clarence C Tam, Cheehow Hoo, Jiaqing Lim, Simin Chiow, Simin Lee, Renzhi Thng, Mingzhe Cai, Yanru Tan, Jingzhan Lock
PURPOSE: Seasonal influenza vaccination is recommended in children aged 6-59months, but little is known about child vaccination coverage and determinants in Asian settings. We report the results of a survey of knowledge, attitudes, practices, and determinants of child influenza vaccination in Singapore. METHODS: In December 2015-March 2016, we conducted a survey of 332 parents of children aged 6months to 5years attending pre-schools. We assessed child influenza vaccine coverage and parental knowledge, attitudes, and practices of child influenza vaccination...
October 27, 2017: Vaccine
https://www.readbyqxmd.com/read/28958701/influenza-vaccine-mediated-protection-in-older-adults-impact-of-influenza-infection-cytomegalovirus-serostatus-and-vaccine-dosage
#17
Shahzma Merani, George A Kuchel, Alison Kleppinger, Janet E McElhaney
Age-related changes in T-cell function are associated with a loss of influenza vaccine efficacy in older adults. Both antibody and cell-mediated immunity plays a prominent role in protecting older adults, particularly against the serious complications of influenza. High dose (HD) influenza vaccines induce higher antibody titers in older adults compared to standard dose (SD) vaccines, yet its impact on T-cell memory is not clear. The aim of this study was to compare the antibody and T-cell responses in older adults randomized to receive HD or SD influenza vaccine as well as determine whether cytomegalovirus (CMV) serostatus affects the response to vaccination, and identify differences in the response to vaccination in those older adults who subsequently have an influenza infection...
September 27, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28957006/recombinant-avian-paramyxovirus-serotypes-2-6-and-10-as-vaccine-vectors-for-highly-pathogenic-avian-influenza-in-chickens-with-antibodies-against-newcastle-disease-virus
#18
Ryota Tsunekuni, Hirokazu Hikono, Taichiro Tanikawa, Riho Kurata, Takaaki Nakaya, Takehiko Saito
Recombinant Newcastle disease virus (rNDV) expressing the hemagglutinin of highly pathogenic avian influenza virus (HPAIV HA) induces protective immunity against HPAIV in chickens. However, the efficacy of rNDV vectors is hampered when chickens are pre-immune to NDV, and most commercial chickens are routinely vaccinated against NDV. We recently showed that avian paramyxovirus serotypes 2, 6, and 10 (APMV-2, APMV-6, and APMV-10), which belong to the same genus as NDV, have low cross-reactivity with anti-NDV antisera...
September 2017: Avian Diseases
https://www.readbyqxmd.com/read/28941982/immune-efficacy-of-an-adenoviral-vector-based-swine-influenza-vaccine-against-antigenically-distinct-h1n1-strains-in-mice
#19
Yunpu Wu, Dawei Yang, Bangfeng Xu, Wenhua Liang, Jinyu Sui, Yan Chen, Huanliang Yang, Hualan Chen, Ping Wei, Chuanling Qiao
Avian-like H1N1 swine influenza viruses are prevalent in pigs and have occasionally crossed the species barrier and infected humans, which highlights the importance of preventing swine influenza. Human adenovirus serotype 5 (Ad5) has been tested in human influenza vaccine clinical trials and has exhibited a reliable safety profile. Here, we generated a replication-defective, recombinant adenovirus (designated as rAd5-avH1HA) expressing the hemagglutinin gene of an avian-like H1N1 virus (A/swine/Zhejiang/199/2013, ZJ/199/13)...
September 20, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28934770/seasonal-influenza-and-vaccination-strategies-is-a-paradigm-shift-needed-a-synopsis-of-the-3rd-new-zealand-influenza-symposium-november-2016
#20
Nadia A Charania, Diana Murfitt, Nikki Turner
Influenza continues to be a global public health problem despite the availability of preventive vaccines and public health vaccination programmes. This paper presents a synopsis of the 3rd New Zealand Influenza Symposium (NZiS) that was hosted by the Immunisation Advisory Centre (IMAC) in November 2016. Experts and service providers convened to discuss current issues in the prevention and management of influenza. One of the key topics discussed was the use of novel vaccines, such as adjuvanted and high-dose vaccines, and antiviral prophylaxis to protect young children and the elderly...
September 22, 2017: New Zealand Medical Journal
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