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https://www.readbyqxmd.com/read/28088686/immune-history-and-influenza-virus-susceptibility
#1
REVIEW
Sarah Cobey, Scott E Hensley
Antibody responses to influenza viruses are critical for protection, but the ways in which repeated viral exposures shape antibody evolution and effectiveness over time remain controversial. Early observations demonstrated that viral exposure history has a profound effect on the specificity and magnitude of antibody responses to a new viral strain, a phenomenon called 'original antigenic sin.' Although 'sin' might suppress some aspects of the immune response, so far there is little indication that hosts with pre-existing immunity are more susceptible to viral infections compared to naïve hosts...
January 12, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28088400/hospitalizations-for-respiratory-syncytial-virus-and-vaccine-preventable-infections-in-the-first-2-years-after-pediatric-liver-transplant
#2
Amy G Feldman, Shikha S Sundaram, Brenda L Beaty, Allison Kempe
OBJECTIVES: To examine in liver transplant recipients at centers participating in the Pediatric Health Information System dataset the number of hospitalizations for respiratory syncytial virus (RSV) and vaccine-preventable infections (VPIs) in the first 2 years after transplantation, morbidity and mortality associated with these hospitalizations, and costs associated with these hospitalizations. STUDY DESIGN: A retrospective cohort study of patients <18 years of age who underwent liver transplantation at a Pediatric Health Information System center between January 1, 2004, and December 31, 2012...
January 11, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28088246/budget-impact-analysis-of-vaccination-against-haemophilus-influenzae-type-b-as-a-part-of-a-pentavalent-vaccine-in-the-childhood-immunization-schedule-of-iran
#3
Fatemeh Teimouri, Abbas Kebriaeezadeh, Seyed Mohsen Zahraei, MohammadMahdi Gheiratian, Shekoufeh Nikfar
BACKGROUND: Health decision makers need to know the impact of the development of a new intervention on the public health and health care costs so that they can plan for economic and financial objectives. The aim of this study was to determine the budget impact of adding Haemophilus influenzae type b (Hib) as a part of a Pentavalent vaccine (Hib-HBV-DTP) to the national childhood immunization schedule of Iran. METHODS: An excel-based model was developed to determine the costs of including the Pentavalent vaccine in the national immunization program (NIP), comparing the present schedule with the previous one (including separate DTP and hepatitis B vaccines)...
January 14, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28088167/randomized-double-blind-placebo-controlled-clinical-trial-to-assess-the-safety-and-effectiveness-of-a-novel-dual-action-oral-topical-formulation-against-upper-respiratory-infections
#4
Pranab K Mukherjee, Frank Esper, Ken Buchheit, Karen Arters, Ina Adkins, Mahmoud A Ghannoum, Robert A Salata
BACKGROUND: Current prevention options for upper respiratory infections (URIs) are not optimal. We conducted a randomized, double-blinded, placebo-controlled pilot clinical trial to evaluate the safety and efficacy of ARMS-I™ (currently marketed as Halo™) in the prevention of URIs. METHODS: ARMS-I is patented novel formulation for the prevention and treatment of influenza, comprising a broad-spectrum antimicrobial agent (cetylpyridinium chloride, CPC) and components (glycerin and xanthan gum) that form a barrier on the host mucosa, thus preventing viral contact and invasion...
January 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28088130/vaccine-candidates-against-nontypeable-haemophilus-influenzae-a-review
#5
REVIEW
Ava Behrouzi, Farzam Vaziri, Fatemeh Rahimi-Jamnani, Parviz Afrough, Mohammad Rahbar, Fereshteh Satarian, Seyed Davar Siadat
Nonencapsulated, nontypeable Hemophilus influenzae (NTHi) remains an important cause of acute otitis and respiratory diseases in children and adults. NTHi bacteria are one of the major causes of respiratory tract infections, including acute otitis media, cystic fibrosis, and community-acquired pneumonia among children, especially in developing countries. The bacteria can also cause chronic diseases such as chronic bronchitis and chronic obstructive pulmonary disease in the lower respiratory tract of adults...
2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28087149/seasonal-vaccines-critical-path-to-pandemic-influenza-response
#6
Wenqing Zhang, Siddhivinayak Hirve, Marie-Paule Kieny
No abstract text is available yet for this article.
January 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28081234/racial-and-ethnic-disparities-in-influenza-vaccination-among-adults-with-chronic-medical-conditions-vary-by-age-in-the-united-states
#7
Degan Lu, Yanru Qiao, Natalie E Brown, Junling Wang
BACKGROUND: People living with chronic health conditions exhibit higher risk for developing severe complications from influenza according to the Centers for Diseases Control and Prevention. Although racial and ethnic disparities in influenza vaccination have been documented, it has not been comprehensively determined whether similar disparities are present among the adult population with at least one such condition. OBJECTIVE: To study if racial and ethnic disparities in relation to influenza vaccination are present in adults suffering from at least one chronic condition and if such inequalities differ between age groups...
2017: PloS One
https://www.readbyqxmd.com/read/28079828/vaccination-with-10-valent-pneumococcal-conjugate-vaccine-in-infants-according-to-hiv-status
#8
Shabir A Madhi, Anthonet Koen, Lisa Jose, Nadia van Niekerk, Peter V Adrian, Clare Cutland, Nancy François, Javier Ruiz-Guiñazú, Juan-Pablo Yarzabal, Marta Moreira, Dorota Borys, Lode Schuerman
BACKGROUND: Phase III, open-label, single-center, controlled study in South Africa (ClinicalTrials.gov: NCT00829010) to evaluate immunogenicity, reactogenicity, and safety of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) in human immunodeficiency virus (HIV)-infected (HIV+), HIV-exposed-uninfected (HEU), and HIV-unexposed-uninfected (HUU) children. METHODS: Children stratified by HIV status received PHiD-CV primary vaccination (age 6/10/14 weeks; coadministered with routine childhood vaccines) and booster dose (age 9-10 months)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28079621/effects-of-education-and-information-on-vaccination-behavior-in-patients-with-inflammatory-bowel-disease
#9
Sofie Coenen, Ellen Weyts, Cedric Jorissen, Paul De Munter, Maja Noman, Vera Ballet, Séverine Vermeire, Gert Van Assche, Marc Ferrante
BACKGROUND: Despite the existence of international guidelines, vaccination in patients with inflammatory bowel disease (IBD) has not been integrated optimally. We developed a thorough education program, and compared its influence on vaccination rates with routine clinical practice in a tertiary IBD center. METHODS: Between December 2014 and March 2015, we included 505 consecutive patients with IBD visiting our outpatient clinic (53% men, 72% Crohn's disease, median age 44 years)...
January 10, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28079473/protective-immunity-against-influenza-in-hla-a2-transgenic-mice-by-modified-vaccinia-virus-ankara-vectored-vaccines-containing-internal-influenza-proteins
#10
Giuseppina Di Mario, Ester Sciaraffia, Marzia Facchini, Francesco Gubinelli, Elisa Soprana, Maddalena Panigada, Valentina Bernasconi, Bruno Garulli, Antonio Siccardi, Isabella Donatelli, Maria R Castrucci
BACKGROUND: The emergence of novel strains of influenza A viruses with hemagglutinins (HAs) that are antigenically distinct from those circulating in humans, and thus have pandemic potential, pose concerns and call for the development of more broadly protective influenza vaccines. In the present study, modified vaccinia virus Ankara (MVA) encoding internal influenza antigens were evaluated for their immunogenicity and ability to protect HLA-A2.1 transgenic (AAD) mice from infection with influenza viruses...
January 12, 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28078756/infections-in-non-splenectomized-persistent-or-chronic-primary-immune-thrombocytopenia-adults-risk-factors-and-vaccination-effect
#11
Guillaume Moulis, Maryse Lapeyre-Mestre, Aurore Palmaro, Laurent Sailler
INTRODUCTION: Risk factors for infection and protective effect of vaccines in immune thrombocytopenia (ITP) patients in the era of rituximab therapy are unknown. OBJECTIVES: To assess the risk factors for serious and non-serious infections (respectively, SIs and NSIs) in non-splenectomized adults treated for persistent or chronic primary ITP, including the effect of pneumococcal and influenza vaccines. PATIENTS/METHODS: The population was the 2009-2012 FAITH cohort (n=1805), which is the cohort of all incident (newly diagnosed) primary ITP adults treated >3months in France built in the national health insurance database (SNIIRAM)...
January 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28077698/detection-of-antigenic-variants-of-swine-subtype-h3-influenza-a-viruses-from-clinical-samples
#12
Brigitte E Martin, Andrew S Bowman, Lei Li, Jacqueline M Nolting, David R Smith, Larry A Hanson, Xiu-Feng Wan
A large population of genetically and antigenically diverse influenza A viruses (IAVs) are circulating among the swine population, playing an important role in influenza ecology. Swine IAVs not only cause outbreaks among swine, but they can also be transmitted to humans, causing sporadic infections and even pandemic outbreaks. Antigenic characterization of swine IAVs are key to understanding the natural history of these viruses in swine and to selecting strains for effective vaccines. However, influenza outbreaks generally spread rapidly among swine, and the conventional methods for antigenic characterization require virus propagation, a time-consuming process that can significantly reduce the effectiveness of vaccination programs...
January 11, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28077656/hierarchical-and-redundant-roles-of-activating-fc%C3%AE-rs-in-protection-against-influenza-disease-by-m2e-specific-igg1-and-igg2a-antibodies
#13
Silvie Van den Hoecke, Katrin Ehrhardt, Annasaheb Kolpe, Karim El Bakkouri, Lei Deng, Hendrik Grootaert, Steve Schoonooghe, Anouk Smet, Mostafa Bentahir, Kenny Roose, Michael Schotsaert, Bert Schepens, Nico Callewaert, Falk Nimmerjahn, Peter Staeheli, Hartmut Hengel, Xavier Saelens
: The ectodomain of matrix protein 2 is a universal influenza A vaccine candidate that provides protection through antibody-dependent effector mechanisms. Here we compared the functional engagement of Fcγ Receptor family members by two M2e-specific monoclonal antibodies: mAb 37 (IgG1) and mAb 65 (IgG2a), which recognize a similar epitope in M2e with similar affinity. Binding of mAb 65 to influenza A virus-infected cells triggered all three activating mouse Fcγ receptors in vitro, whereas mAb 37 only activated FcγRIII...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28077641/chikungunya-influenza-nipah-and-semliki-forest-chimeric-viruses-with-vesicular-stomatitis-virus-actions-in-the-brain
#14
Anthony N van den Pol, Guochao Mao, Anasuya Chattopadhyay, John K Rose, John N Davis
: Recombinant vesicular stomatitis virus (VSV)-based chimeric viruses that include genes from other viruses show promise as vaccines and oncolytic viruses. However, the critical safety concern is the neurotropic nature conveyed by the VSV glycoprotein. VSVs that include the VSV glycoprotein gene, even in most recombinant attenuated strains, can still show substantial adverse or lethal actions in the brain. Here we test 4 chimeric viruses in the brain including those in which glycoprotein genes from Nipah, chikungunya, or influenza H5N1 viruses were substituted for the VSV glycoprotein gene...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28077631/vaccine-efficacy-of-an-inactivated-chimeric-ha-h9-h5n2-avian-influenza-virus-and-its-suitability-for-the-marker-vaccine-strategy
#15
Se Mi Kim, Young-Il Kim, Su-Jin Park, Eun-Ha Kim, Hyeok-Il Kwon, Young-Jae Si, In-Won Lee, Min-Suk Song, Young Ki Choi
: In order to produce a dual effective vaccine against H9 and H5 avian influenza viruses that aligns with the DIVA (differentiating infected from vaccinated animals) strategy, we generated a chimeric H9/H5N2 recombinant vaccine which expressed the whole HA1 region of A/CK/Korea/04163/04 H9N2 and HA2 region of recent HPAI A/MD/Korea/W452/14 H5N8 viruses. The Chimeric H9/H5N2 virus showed similar in vitro and in vivo growth properties and virulence to the LPAI H9 influenza virus. An inactivated vaccine based on this chimeric virus induced serum neutralizing (SN) antibodies against both H9 and H5 viruses, but only induced cross-reactive hemmaglutination inhibition (HI) antibody against H9 viruses...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28077609/travellers-and-influenza-risks-and-prevention
#16
REVIEW
M Goeijenbier, P van Genderen, B J Ward, A Wilder-Smith, R Steffen, A D M E Osterhaus
BACKGROUND: Influenza viruses are among the major causes of serious human respiratory tract infection worldwide. In line with the high disease burden attributable to influenza, these viruses play an important, but often neglected, role in travel medicine. Guidelines and recommendations regarding prevention and management of influenza in travellers are scarce. Of special interest for travel medicine are risk populations and also circumstances that facilitate influenza virus transmission and spread, like travel by airplane or cruise ship and mass gatherings...
January 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28077601/a-new-rna-based-adjuvant-enhances-virus-specific-vaccine-responses-by-locally-triggering-tlr-and-rlh-dependent-effects
#17
Annett Ziegler, Claudia Soldner, Stefan Lienenklaus, Julia Spanier, Stephanie Trittel, Peggy Riese, Thomas Kramps, Siegfried Weiss, Regina Heidenreich, Edith Jasny, Carlos A Guzmán, Karl-Josef Kallen, Mariola Fotin-Mleczek, Ulrich Kalinke
Among innovative adjuvants conferring a Th1-shift, RNAdjuvant is a promising candidate. This adjuvant consists of a 547-nt uncapped noncoding ssRNA containing polyU repeats that is stabilized by a cationic carrier peptide. Whereas vaccination of mice with an influenza subunit vaccine induced moderate virus-specific IgG1, vaccination together with RNAdjuvant significantly enhanced this IgG1 and additionally promoted the formation of IgG2b/c, which is indicative of Th1 responses. Furthermore, such sera neutralized influenza virus, whereas this effect was not detected upon vaccination with the subunit vaccine alone...
January 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28073985/population-based-pertussis-incidence-and-risk-factors-in-infants-less-than-6-months-in-nepal
#18
Michelle M Hughes, Janet A Englund, Jane Kuypers, James M Tielsch, Subarna K Khatry, Laxman Shrestha, Steven C LeClerq, Mark Steinhoff, Joanne Katz
BACKGROUND: Pertussis is estimated to cause 2 percent of childhood deaths globally and is a growing public health problem in developed countries despite high vaccination coverage. Infants are at greatest risk of morbidity and mortality. Maternal vaccination during pregnancy may be effective to prevent pertussis in young infants, but population-based estimates of disease burden in infants are lacking, particularly in low-income countries. The objective of this study was to estimate the incidence of pertussis in infants less than 6 months of age in Sarlahi District, Nepal...
January 10, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28070500/chimeric-influenza-haemagglutinins-generation-and-use-in-pseudotype-neutralization-assays
#19
Francesca Ferrara, Nigel Temperton
Recently chimeric influenza haemagglutinins (cHAs) have been generated as potential 'universal' vaccination antigens and as tools to identify HA stalk-directed antibodies via their use as antigens in ELISA, and virus or pseudotype-based neutralization assays. The original methods [1], [2] used for their generation require the amplification of regions of interest (head and stalk) using primers containing SapI sites and subsequent cloning into pDZ plasmid. This requires precise primer design, checking for the absence of SapI sites in the sequence of interest, and multi-segment ligation...
2017: MethodsX
https://www.readbyqxmd.com/read/28069360/zika-virus-knowledge-attitudes-and-vaccine-interest-among-university-students
#20
Julia E Painter, Ashley N Plaster, Dylan H Tjersland, Kathryn H Jacobsen
BACKGROUND: Zika virus vaccine development is underway. We examined interest in receiving a Zika virus vaccine (after one becomes commercially available) among students at a large public university in Northern Virginia. METHODS: An online survey of Zika virus-related knowledge, attitudes, and interest in receiving a Zika vaccine was completed by 619 undergraduate students in April, 2016. Stepwise logistic regression with backward elimination was used to identify the variables most strongly associated with interest in being vaccinated against Zika virus...
January 6, 2017: Vaccine
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