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Vaccine

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https://www.readbyqxmd.com/read/28818568/reasons-for-non-vaccination-parental-vaccine-hesitancy-and-the-childhood-influenza-vaccination-school-pilot-programme-in-england
#1
Pauline Paterson, Tracey Chantler, Heidi J Larson
INTRODUCTION: In 2013, the annual influenza immunisation programme in England was extended to children to reduce the burden of influenza, but uptake was sub-optimal at 53.2%. AIM: To explore the reasons some parents decided not to vaccinate their child against influenza as part of the pilot programme offered in schools. METHODS: Cross-sectional qualitative study conducted between February and July 2015. 913 parents whose children were not vaccinated against influenza in the school pilots in West Yorkshire and Greater Manchester, England, were asked to comment on their reasons for non-vaccination and invited to take part in a semi-structured interview...
August 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28818567/a-protein-chimera-including-pspa-in-fusion-with-potd-is-protective-against-invasive-pneumococcal-infection-and-reduces-nasopharyngeal-colonization-in-mice
#2
T R Converso, C Goulart, M Darrieux, L C C Leite
Despite the success of the available polysaccharide-based vaccines against Streptococcus pneumoniae in preventing invasive diseases, this bacterium remains a major cause of death in many parts of the world. New vaccine strategies are needed in order to increase protection. Thus, the utilization of fusion proteins is being investigated as an alternative to the current formulations. In the present work, we demonstrate that a chimeric protein, composed of PspA and PotD in fusion is able to maintain the protective characteristics of both parental proteins, providing protection against systemic infection while reducing nasal colonization...
August 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28818566/a-synthetic-human-cytomegalovirus-pp65-ie1-fusion-antigen-efficiently-induces-and-expands-virus-specific-t-cells
#3
Ellen K Link, Christine Brandmüller, Yasemin Suezer, Stefanie Ameres, Asisa Volz, Andreas Moosmann, Gerd Sutter, Michael H Lehmann
Infection with human cytomegalovirus (HCMV) can cause severe complications in newborns and immunocompromised patients, and a prophylactic or therapeutic vaccine against HCMV is not available. Here, we generated a HCMV vaccine candidate fulfilling the regulatory requirements for GMP-compliant production and clinical testing. A novel synthetic fusion gene consisting of the coding sequences of HCMV pp65 and IE1 having a deleted nuclear localization sequence and STAT2 binding domain was introduced into the genome of the attenuated vaccinia virus strain MVA...
August 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28818565/raw-starch-microparticles-have-immunostimulant-activity-in-mice-vaccinated-with-bcg-and-challenged-with-mycobacterium-tuberculosis
#4
Silvia Moreno-Mendieta, Jorge Barrios-Payán, Dulce Mata-Espinosa, Sergio Sánchez, Rogelio Hernández-Pando, Romina Rodríguez-Sanoja
The main challenge for vaccine development or improvement is the lack of safe adjuvants or immunostimulants that induce protective immune responses and can be used for mucosal immunization, which is a highly desirable strategy for vaccination against infectious diseases acquired by oral or intranasal routes. One promising alternative is the use of biodegradable and biocompatible polymeric microparticles. Recently, we developed an immobilization and delivery system with starch microparticles (SMPs) and a starch-binding domain (SBDtag) suitable for the mucosal administration of antigens and the induction of antigen-specific immune responses...
August 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28811050/vaccine-decision-making-begins-in-pregnancy-correlation-between-vaccine-concerns-intentions-and-maternal-vaccination-with-subsequent-childhood-vaccine-uptake
#5
M H Danchin, J Costa-Pinto, K Atwell, H Willaby, K Wiley, M Hoq, J Leask, K P Perrett, Jacinta O'Keefe, M L Giles, H Marshall
INTRODUCTION: Maternal and childhood vaccine decision-making begins prenatally. Amongst pregnant Australian women we aimed to ascertain vaccine information received, maternal immunisation uptake and attitudes and concerns regarding childhood vaccination. We also aimed to determine any correlation between a) intentions and concerns regarding childhood vaccination, (b) concerns about pregnancy vaccination, (c) socioeconomic status (SES) and (d) uptake of influenza and pertussis vaccines during pregnancy and routine vaccines during childhood...
August 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28807608/benefits-of-flu-vaccination-for-persons-with-diabetes-mellitus-a-review
#6
REVIEW
M Goeijenbier, T T van Sloten, L Slobbe, C Mathieu, P van Genderen, Walter E P Beyer, Albert D M E Osterhaus
Diabetes mellitus imposes a significant and increasing burden on society, with major consequences for human health, welfare and the economy worldwide. Persons with diabetes mellitus are at increased risk of developing severe complications after influenza virus infection and guidelines advise vaccination. The present evidence for influenza vaccine effectiveness in persons with diabetes mellitus is mainly based on observational studies with clinical endpoints like hospitalization and death, indicating a beneficial reduction of morbidity and mortality...
August 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28807607/plasma-cell-and-serum-antibody-responses-to-influenza-vaccine-in-preterm-and-full-term-infants
#7
Carl T D'Angio, Claire P Wyman, Ravi S Misra, Jessica L Halliley, Hongyue Wang, Julianne E Hunn, Caitlin M Fallone, F Eun-Hyung Lee
BACKGROUND: Preterm (PT) infants are at greater risk for severe influenza infection and experience decrements in long-term antibody responses to vaccines. This may related to defects in antibody secreting cell (ASC) generation. OBJECTIVE: To investigate the relationships among the frequencies of influenza-specific antibody secreting cells, ASC numbers and subsets, and antibody responses to influenza vaccines (IV) among PT and full-term (FT) infants. DESIGN/METHODS: We enrolled 11 former PT (≤32weeks' gestation, ≤1500 g' birth weight) and 11FT infants, 6-17months of age, receiving their first influenza immunizations...
August 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28807606/effectiveness-of-different-vaccine-schedules-for-heptavalent-and-13-valent-conjugate-vaccines-against-pneumococcal-disease-in-the-community-of-madrid
#8
P Latasa, M Ordobás, M Garrido-Estepa, A Gil de Miguel, J C Sanz, M D Barranco, E Insúa, L García-Comas
INTRODUCTION: The heptavalent pneumococcal conjugate vaccine (PCV-7) was added to the childhood routine vaccination program in the Community of Madrid in November of 2006 with 3+1 recommended doses and a catch-up for those under 2years old. In June 2010, PCV-7 was replaced by 13-valent vaccine (PCV-13) with 2+1 recommended doses. In July of 2012, the PCV-13 was removed from the funded program and reintroduced again (2+1 recommended doses) in December 2014. In between, children were vaccinated privately with 3+1 recommended doses of PCV-13...
August 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28807605/adjuvant-hpv-vaccination-for-anal-cancer-prevention-in-hiv-positive-men-who-have-sex-with-men-the-time-is-now
#9
Ashish A Deshmukh, Scott B Cantor, Elisabeth Fenwick, Elizabeth Y Chiao, Alan G Nyitray, Elizabeth A Stier, Stephen E Goldstone, Timothy Wilkin, Jagpreet Chhatwal
IMPORTANCE: Outcomes of treating high-grade squamous intraepithelial lesions (HSIL), a precursor to anal cancer, remain uncertain. Emerging evidence shows that post HSIL treatment adjuvant quadrivalent human papillomavirus (qHPV) vaccination improves the effectiveness of treatment. However, no recommendations exist regarding the use of qHPV vaccine as an adjuvant form of therapy. Our objective was to determine whether post-treatment adjuvant vaccination should be adopted in HIV-infected MSM (individuals at highest risk for anal cancer) on the basis of cost-effectiveness determined using existing evidence or whether future research is needed...
August 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28807604/focusing-on-the-implementation-of-21st-century-vaccines-for-adults
#10
Paolo Bonanni, Guglielmo Bonaccorsi, Chiara Lorini, Francesca Santomauro, Emilia Tiscione, Sara Boccalini, Angela Bechini
Adult immunization is a priority for public health, particularly in countries where an aging population has become increasingly more numerous. Protection against diseases which typically affect adults (like flu, pneumococcal diseases and Herpes zoster), the shift of age of infections which originally affected children (like measles), the decreasing protection with time for infections which need periodical booster doses of vaccines (Tdap), the availability of vaccines which can also impact on adult health (HPV) are only some examples of the importance of implementing targeted vaccination strategies...
August 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28803715/a-phase-1-randomized-open-label-clinical-study-to-evaluate-the-safety-and-tolerability-of-a-novel-recombinant-hepatitis-e-vaccine
#11
Yu-Feng Cao, Hong Tao, Yue-Mei Hu, Cheng-Bo Shi, Xing Wu, Qi Liang, Chun-Ping Chi, Li Li, Zheng-Lun Liang, Ji-Hong Meng, Feng-Cai Zhu, Zhao-Hui Liu, Xin-Ping Wang
BACKGROUND: This study aimed to evaluate the safety and tolerability for variable dosages of a novel hepatitis E vaccine p179. METHODS: The randomized open-label parallel control phase 1 clinical trial enrolled 120 eligible participants aged 16-65years in Jiangsu Province, China. The experimental groups were randomized to receive different dosages of 20μg, 30μg, and 40μg Hepatitis E Virus (HEV) p179 vaccines, with the 30μgHEV vaccine p239 Hecolin as control, and vaccinated at 0, 1 and 6month intervals...
August 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28803714/building-capacity-for-active-surveillance-of-vaccine-adverse-events-in-the-americas-a-hospital-based-multi-country-network
#12
Pamela Bravo-Alcántara, Silvia Pérez-Vilar, Helvert Felipe Molina-León, Miriam Sturkenboom, Steven Black, Patrick L F Zuber, Christine Maure, Jose Luis Castro
New vaccines designed to prevent diseases endemic in low and middle-income countries are being introduced without prior utilization in countries with robust vaccine pharmacovigilance systems. Our aim was to build capacity for active surveillance of vaccine adverse events in the Americas. We describe the implementation of a proof-of-concept study for the feasibility of an international collaborative hospital-based active surveillance system for vaccine safety. The study was developed and implemented in 15 sentinel sites located in seven countries of the region of the Americas, under the umbrella of the World Health Organization (WHO) Global Vaccine Safety Initiative...
August 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28803713/a-review-of-the-key-factors-to-improve-adult-immunization-coverage-rates-what-can-the-clinician-do
#13
Litjen L J Tan
Adult immunization coverage rates remain low in the United States and internationally, despite obvious benefits to vaccinating and maintaining a well-vaccinated adult population. Broad policy changes are required to identify and address gaps in financing, in immunization infrastructure, and patient and provider awareness and knowledge to improve the protection of our adult and aging population from vaccine-preventable diseases. There is good evidence that efforts are now underway both within the United States and across the world to advance these policy changes...
August 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28803712/oral-cholera-vaccine-coverage-in-hard-to-reach-fishermen-communities-after-two-mass-campaigns-malawi-2016
#14
Delphine Sauvageot, Christel Saussier, Abebe Gobeze, Sikhona Chipeta, Innocent Mhango, Gift Kawalazira, Martin A Mengel, Dominique Legros, Philippe Cavailler, Maurice M'bang'ombe
CONTEXT: From December 2015 to August 2016, a large epidemic of cholera affected the fishermen of Lake Chilwa in Malawi. A first reactive Oral Cholera Vaccines (OCV) campaign was organized, in February, in a 2km radius of the lake followed by a preemptive one, conducted in November, in a 25km radius. We present the vaccine coverage reached in hard-to-reach population using simplified delivery strategies. METHOD: We conducted two-stage random-sampling cross-sectional surveys among individuals living in a 2km and 25km radius of Lake Chilwa (islands and floating homes included)...
August 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28802757/the-typhoid-vaccine-acceleration-consortium-tyvac-vaccine-effectiveness-study-designs-accelerating-the-introduction-of-typhoid-conjugate-vaccines-and-reducing-the-global-burden-of-enteric-fever-report-from-a-meeting-held-on-26-27-october-2016-oxford-uk
#15
James E Meiring, Malick Gibani
Typhoid fever is estimated to cause between 11.9-26.9 million infections globally each year with 129,000-216,510 deaths. Access to improved water sources have reduced disease incidence in parts of the world but the use of efficacious vaccines is seen as an important public health tool for countries with a high disease burden. A new generation of Vi typhoid conjugate vaccines (TCVs), licensed for use in young children and expected to provide longer lasting protection than previous vaccines, are now available...
August 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28802756/feasibility-of-using-global-system-for-mobile-communication-gsm-based-tracking-for-vaccinators-to-improve-oral-poliomyelitis-vaccine-campaign-coverage-in-rural-pakistan
#16
Subhash Chandir, Vijay Kumar Dharma, Danya Arif Siddiqi, Aamir Javed Khan
Despite multiple rounds of immunization campaigns, it has not been possible to achieve optimum immunization coverage for poliovirus in Pakistan. Supplementary activities to improve coverage of immunization, such as door-to-door campaigns are constrained by several factors including inaccurate hand-drawn maps and a lack of means to objectively monitor field teams in real time, resulting in suboptimal vaccine coverage during campaigns. Global System for Mobile Communications (GSM) - based tracking of mobile subscriber identity modules (SIMs) of vaccinators provides a low-cost solution to identify missed areas and ensure effective immunization coverage...
August 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28802755/pneumococcal-conjugate-vaccination-response-in-patients-after-community-acquired-pneumonia-differences-in-patients-with-s-pneumoniae-versus-other-pathogens
#17
G H J Wagenvoort, B J M Vlaminckx, D A van Kessel, R C L Geever, B A W de Jong, J C Grutters, W J W Bos, B Meek, G T Rijkers
OBJECTIVES: The goal of this study is to investigate the immune response to the 13-valent pneumococcal conjugate vaccine (PCV13) in former pneumococcal CAP patients. We hypothesize that an impaired or suboptimal humoral immune response against (specific) pneumococcal serotypes might explain the vulnerability for pneumococcal disease. METHODS: Hospitalised adult CAP patients who participated in two trials (2004-2006 (n=201) and, 2007-2009 (n=304)) were screened. Patients eligible for inclusion had CAP caused by either S...
August 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28802754/cost-benefit-analyses-of-supplementary-measles-immunisation-in-the-highly-immunized-population-of-new-zealand
#18
D T S Hayman, J C Marshall, N P French, T E Carpenter, M G Roberts, T Kiedrzynski
As endemic measles is eliminated from countries through increased immunisation, the economic benefits of enhanced immunisation programs may come into question. New Zealand has suffered from outbreaks after measles introductions from abroad and we use it as a model system to understand the benefits of catch up immunisation in highly immunised populations. We provide cost-benefit analyses for measles supplementary immunisation in New Zealand. We model outbreaks based on estimates of the basic reproduction number in the vaccinated population (Rv, the number of secondary infections in a partially immunised population), based on the number of immunologically-naïve people at district and national levels, considering both pre- and post-catch up vaccination scenarios...
August 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28802753/challenges-in-immunisation-service-delivery-for-refugees-in-australia-a-health-system-perspective
#19
A Mahimbo, H Seale, M Smith, A Heywood
BACKGROUND: Refugees are at risk of being under-immunised in their countries of origin, in transit and post-resettlement in Australia. Whilst studies have focused on identifying barriers to accessibility of health services among refugees, few focus on providers' perspectives on immunisation service delivery to this group. Health service providers are well placed to provide insights into the pragmatic challenges associated with refugee health service delivery, which can be useful in identifying strategies aimed at improving immunisation coverage among this group...
August 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28802752/in-vitro-and-in-vivo-studies-of-deglycosylated-chimeric-porcine-reproductive-and-respiratory-syndrome-virus-as-a-vaccine-candidate-and-its-realistic-revenue-impact-at-commercial-pig-production-level
#20
Jung-Ju Kim, Jung-Ah Lee, Hwi-Yeon Choi, Jang-Hyuck Han, Won Huh, Jae-Ho Pi, Jung-Keun Lee, Sangshin Park, Ki-Hyun Cho, Joong-Bok Lee
Porcine reproductive and respiratory syndrome virus (PRRSV) causes major economic losses in the swine industry worldwide. Vaccination is the most effective method to control the disease. In a previous study, a chimeric PRRSV named as K418 which had a genome composed of ORF 1 from the FL12 strain and ORF 2-7 from the Korean representative LMY strain was created. We constructed K418DM, K418 with deglycosylated glycoprotein 5 (GP5), to improve its humoral immunity. In the follow-up on in vivo and in vitro virological and serological tests, no back mutation in amino acids of GP5 associated with deglycosylation was shown after 9 passages on MARC-145 cells, whereas only one case of back mutation was detected after single passage in pig...
August 9, 2017: Vaccine
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