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Vaccine

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https://www.readbyqxmd.com/read/28233625/immunity-against-vaccine-preventable-diseases-in-finnish-pediatric-healthcare-workers-in-2015
#1
Karoliina Koivisto, Laura Puhakka, Maija Lappalainen, Soile Blomqvist, Harri Saxén, Tea Nieminen
Healthcare workers (HCWs) pose a risk to themselves and their patients if not protected against vaccine-preventable diseases. Alarmingly, lacking immunity has been reported in several studies. We assessed the immunity against vaccine-preventable diseases in 157 pediatric HCWs in Helsinki Children's Hospital. The HCWs enrolled answered a questionnaire and gave a serum sample. Antibodies were measured with EIA against MMR-diseases, tetanus and diphtheria toxins, Hepatitis B (HBV), Hepatitis A (HAV), varicella zoster and pertussis toxin...
February 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28233624/risk-factors-and-familial-clustering-for-fever-7-10days-after-the-first-dose-of-measles-vaccines
#2
Nicola P Klein, Edwin Lewis, Julia McDonald, Bruce Fireman, Allison Naleway, Jason Glanz, Lisa A Jackson, James G Donahue, Steven J Jacobsen, Eric Weintraub, Roger Baxter
BACKGROUND: Seven to ten days after a first dose of a measles-containing vaccine (MCV; i.e., MMR or MMRV), children have elevated fever risk which can be associated with febrile seizures. This study investigated individual and familial factors associated with fever 7-10days after MCV. METHODS: Retrospective cohort study among children who were <36months of age at receipt of MCV in six sites of the Vaccine Safety Datalink from 1/1/2000 to 12/31/2012. We evaluated medically-attended clinic or emergency department visits with a code for fever 7-10days after any MCV ("MCV- associated")...
February 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28228322/anti-tumour-research-of-recombinant-bcg-using-bzlf1-and-hgm-csf-fusion-genes
#3
Qing-Jie Xue, Yun-Qing Li, Chun-Qing Yang, Ting Chen, Xiu-Zhen Li, Baohua Cheng, Chun-Mei Wang
The random primer Oligo(dT)15 was used in RT-PCR to obtain cDNA from the human granulocyte macrophage colony stimulating factor (hGM-CSF) gene and the Epstein-Barr virus (EBV) gene BZLF1. Then, the sequence splicing overlap extension method was used to obtain a GCBF fusion gene containing a linker sequence that encoded the polypeptide (Gly4Ser)3. The GCBF fusion gene was inserted into pMV261, which was then transformed into competent E. coli DH5 alpha cells, and positive cells were selected based on kanamycin resistance on LB plates...
February 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28228321/immunization-of-bighorn-sheep-against-mannheimia-haemolytica-with-a-bovine-herpesvirus-1-vectored-vaccine
#4
Sai A Batra, Sudarvili Shanthalingam, Gaetano Donofrio, Gary J Haldorson, Shafiqul Chowdhury, Stephen N White, Subramaniam Srikumaran
Mannheimia haemolytica is an important pathogen of pneumonia in bighorn sheep (BHS), consistently causing 100% mortality under experimental conditions. Leukotoxin is the critical virulence factor of M. haemolytica. In a 'proof of concept' study, a vaccine containing leukotoxin and surface antigens of M. haemolytica induced 100% protection in BHS, but required multiple booster doses. Vaccination of wildlife is difficult. BHS, however, can be vaccinated at the time of transplantation, but administration of booster doses is impossible...
February 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28222999/effect-of-stepwise-perinatal-immunization-education-a-cluster-randomized-controlled-trial
#5
Aya Saitoh, Akihiko Saitoh, Isamu Sato, Tomohiro Shinozaki, Hajime Kamiya, Satoko Nagata
BACKGROUND: Perinatal immunization education is important for improving the immunization outcomes of infants; however, the content of educational materials used at each perinatal period has not been carefully evaluated. We hypothesized that stepwise education offered at different perinatal periods would improve infant immunization status and enhance maternal immunization knowledge. METHODS: In this cluster-randomized controlled trial, pregnant women were recruited from nine obstetric sites in Niigata, Japan...
February 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28222998/dynamics-of-apc-recruitment-at-the-site-of-injection-following-injection-of-vaccine-adjuvants
#6
Susan van Aalst, Irene Stephanie Ludwig, Peter Johannes Sylvester van Kooten, Ruurd van der Zee, Willem van Eden, Femke Broere
Vaccines often contain adjuvants to strengthen the response to the vaccine antigen. However, their modes of action at the site of injection (SOI) are poorly understood. Therefore, we assessed the local effects of adjuvant on the innate immune system in mice. We investigated the safe, widely used adjuvants MF59 and aluminum hydroxide (alum), as well as trehalose-6,6'-dibehenate (TDB), Complete Freund's Adjuvant (CFA) and the Toll-Like-Receptor-ligands lipopolysaccharide (LPS) and Pam3CysSerLys4 (Pam3CSK4). We assessed muscle immune cell infiltration after adjuvant injection and observed 16h post immunization (hpi) an increased influx with CFA, MF59 and TDB, but not with alum, LPS or Pam3CSK4...
February 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28222997/integrated-analysis-of-recombinant-bpv-1-l1-protein-for-the-production-of-a-bovine-papillomavirus-vlp-vaccine
#7
Diego Grando Módolo, Rodrigo Pinheiro Araldi, Jacqueline Mazzuchelli-de-Souza, Alexandre Pereira, Daniel Carvalho Pimenta, Letícia Maria Zanphorlin, Willy Beçak, Marcelo Menossi, Rita de Cassia Stocco, Rodrigo Franco de Carvalho
Bovine papillomatosis is an infectious disease that is caused by bovine papillomavirus (BPV), which results in important economic losses. However, no BPV vaccines or effective treatment methods are commercially available to date. Moreover, the absence of papillomavirus replication in vitro makes the use of recombinant protein a promising candidate for vaccine formulations. Hence, we developed an integrated study on the L1 capsid protein of BPV-1, obtained from a bacterial expression system, regarding its purification, biosafety, thermostability and immunogenicity...
February 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28216190/evaluation-of-two-vaccine-education-interventions-to-improve-pertussis-vaccination-among-pregnant-african-american-women-a-randomized-controlled-trial
#8
Jennifer L Kriss, Paula M Frew, Marielysse Cortes, Fauzia A Malik, Allison T Chamberlain, Katherine Seib, Lisa Flowers, Kevin A Ault, Penelope P Howards, Walter A Orenstein, Saad B Omer
BACKGROUND: Vaccination coverage with tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) vaccine in pregnancy or immediately postpartum has been low. Limited data exist on rigorously evaluated interventions to increase maternal vaccination, including Tdap. Tailored messaging based on the Elaboration Likelihood Model (ELM) framework has been successful in improving uptake of some public health interventions. We evaluated the effect of two ELM-based vaccine educational interventions on Tdap vaccination among pregnant African American women, a group of women who tend to have lower vaccine uptake compared with other groups...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216189/rotavirus-immunization-global-coverage-and-local-barriers-for-implementation
#9
Andrea Lo Vecchio, Ilaria Liguoro, Jorge Amil Dias, James A Berkley, Chris Boey, Mitchell B Cohen, Sylvia Cruchet, Eduardo Salazar-Lindo, Samir Podder, Bhupinder Sandhu, Philip M Sherman, Toshiaki Shimizu, Alfredo Guarino
BACKGROUND: Rotavirus (RV) is a major agent of gastroenteritis and an important cause of child death worldwide. Immunization (RVI) has been available since 2006, and the Federation of International Societies of Gastroenterology Hepatology and Nutrition (FISPGHAN) identified RVI as a top priority for the control of diarrheal illness. A FISPGHAN working group on acute diarrhea aimed at estimating the current RVI coverage worldwide and identifying barriers to implementation at local level...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216188/rationale-and-support-for-a-one-health-program-for-canine-vaccination-as-the-most-cost-effective-means-of-controlling-zoonotic-rabies-in-endemic-settings
#10
REVIEW
Robert P Lavan, Alasdair I MacG King, David J Sutton, Kaan Tunceli
Although dog vaccination has been demonstrated to reduce and eliminate rabies in humans, during meetings there are often calls for further pilot studies. The assembled data proves that a widespread approach is now required. While zoonotic rabies has a minimal presence in developed nations, it is endemic throughout most of Asia and Africa, where it is considered to be a neglected tropical disease. In these areas, rabies causes an estimated annual mortality of at least 55,000 human deaths. Worldwide rabid dogs are the source of the vast majority of human rabies exposures...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216187/recombinant-proteins-of-zaire-ebolavirus-induce-potent-humoral-and-cellular-immune-responses-and-protect-against-live-virus-infection-in-mice
#11
Axel T Lehrer, Teri-Ann S Wong, Michael M Lieberman, Tom Humphreys, David E Clements, Russell R Bakken, Mary Kate Hart, William D Pratt, John M Dye
Infections with filoviruses in humans are highly virulent, causing hemorrhagic fevers which result in up to 90% mortality. In addition to natural infections, the ability to use these viruses as bioterrorist weapons is of significant concern. Currently, there are no licensed vaccines or therapeutics available to combat these infections. The pathogenesis of disease involves the dysregulation of the host's immune system, which results in impairment of the innate and adaptive immune responses, with subsequent development of lymphopenia, thrombocytopenia, hemorrhage, and death...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216186/demographics-epidemiology-and-the-impact-of-vaccination-campaigns-in-a-measles-free-world-can-elimination-be-maintained
#12
J M Prada, C J E Metcalf, S Takahashi, J Lessler, A J Tatem, M Ferrari
INTRODUCTION: All six WHO regions currently have goals for measles elimination by 2020. Measles vaccination is delivered via routine immunization programmes, which in most sub-Saharan African countries reach children around 9months of age, and supplementary immunization activities (SIAs), which target a wider age range at multi-annual intervals. In the absence of endemic measles circulation, the proportion of individuals susceptible to measles will gradually increase through accumulation of new unvaccinated individuals in each birth cohort, increasing the risk of an epidemic...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216185/sensitization-to-bovine-serum-albumin-as-a-possible-cause-of-allergic-reactions-to-vaccines
#13
Rajiva de Silva, W M D K Dasanayake, G D Wickramasinhe, Chandima Karunatilake, Nayani Weerasinghe, Peshala Gunasekera, Gathsaurie Neelika Malavige
BACKGROUND: Immediate type hypersensitivity to vaccines containing bovine/porcine excipients, such as the measles, mumps and rubella (MMR) vaccine is probably due to sensitization to bovine/porcine gelatin. Most patients with such reactions in Sri Lanka have cow's milk (CM) or beef allergy. OBJECTIVES: We investigated whether those who had beef and CM allergy had a higher incidence of hypersensitivity reactions to vaccines and the possible trigger of such reactions...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216184/vaccine-development-for-emerging-virulent-infectious-diseases
#14
Joel N Maslow
The recent outbreak of Zaire Ebola virus in West Africa altered the classical paradigm of vaccine development and that for emerging infectious diseases (EIDs) in general. In this paper, the precepts of vaccine discovery and advancement through pre-clinical and clinical assessment are discussed in the context of the recent Ebola virus, Middle East Respiratory Syndrome coronavirus (MERS-CoV), and Zika virus outbreaks. Clinical trial design for diseases with high mortality rates and/or high morbidity in the face of a global perception of immediate need and the factors that drive design in the face of a changing epidemiology are presented...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28216183/safety-and-immunogenicity-of-the-novel-h4-ic31-tuberculosis-vaccine-candidate-in-bcg-vaccinated-adults-two-phase-i-dose-escalation-trials
#15
Maria Norrby, Timo Vesikari, Lars Lindqvist, Markus Maeurer, Raija Ahmed, Shahnaz Mahdavifar, Sean Bennett, J Bruce McClain, Barbara M Shepherd, Daner Li, David A Hokey, Ingrid Kromann, Søren T Hoff, Peter Andersen, Adriëtte W de Visser, Simone A Joosten, Tom H M Ottenhoff, Jan Andersson, Susanna Brighenti
BACKGROUND: Novel vaccine strategies are required to provide protective immunity in tuberculosis (TB) and prevent development of active disease. We investigated the safety and immunogenicity of a novel TB vaccine candidate, H4:IC31 (AERAS-404) that is composed of a fusion protein of M. tuberculosis antigens Ag85B and TB10.4 combined with an IC31® adjuvant. METHODS: BCG-vaccinated healthy subjects were immunized with various antigen (5, 15, 50, 150μg) and adjuvant (0, 100, 500nmol) doses of the H4:IC31 vaccine (n=106) or placebo (n=18) in two randomized, double-blind, placebo-controlled phase I studies conducted in a low TB endemic setting in Sweden and Finland...
February 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28214045/factors-affecting-the-willingness-of-nursing-students-to-receive-annual-seasonal-influenza-vaccination-a-large-scale-cross-sectional-study
#16
Kin Cheung, Sin Man Simone Ho, Winsome Lam
Nursing students are at high risk of exposure to vaccine-preventable diseases such as seasonal influenza. However, due to the limited number of studies conducted in this area, the prevalence and factors affecting annual seasonal influenza vaccination (ASIV) uptake remain unclear. This was a large-scale cross-sectional survey study conducted among 902 nursing students in different years of study. The questionnaire was developed based on the Health Belief Model (HBM), and logistic regression was used to determine the predictors of ASIV uptake...
February 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28214044/enhancement-of-antigen-specific-cd4-and-cd8-t-cell-responses-using-a-self-assembled-biologic-nanolipoprotein-particle-vaccine
#17
Dina Weilhammer, Alexis D Dunkle, Craig D Blanchette, Nicholas O Fischer, Michele Corzett, Doerte Lehmann, Tyler Boone, Paul Hoeprich, Adam Driks, Amy Rasley
To address the need for vaccine platforms that induce robust cell-mediated immunity, we investigated the potential of utilizing self-assembling biologic nanolipoprotein particles (NLPs) as an antigen and adjuvant delivery system to induce antigen-specific murine T cell responses. We utilized OT-I and OT-II TCR-transgenic mice to investigate the effects of NLP-mediated delivery of the model antigen ovalbumin (OVA) on T cell activation. Delivery of OVA with the TLR4 agonist monophosphoryl lipid A (MPLA) in the context of NLPs significantly enhanced the activation of both CD4(+) and CD8(+) T cells in vitro compared to co-administration of free OVA and MPLA...
February 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28209436/is-colombia-reaching-the-goals-on-infant-immunization-coverage-a-quantitative-survey-from-80-municipalities
#18
Javier Narváez, May Bibiana Osorio, Carlos Castañeda-Orjuela, Nelson Alvis Zakzuk, Natalia Cediel, Luz Ángela Chocontá-Piraquive, Fernando de La Hoz-Restrepo
OBJECTIVES: This study aimed to evaluate the coverage of the Colombian Expanded Program on Immunization among children less than 6years old, to evaluate the timeliness of immunization, to assess the coverage of newly introduced vaccines, and to identify factors associated with lack of immunization. METHODS: We conducted a cross-sectional survey in 80 municipalities of Colombia, using a two-stage cluster random sampling. We attempted to contact all children less than 6years old living in the sampled blocks, and asked their caregivers to provide immunization record cards...
February 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28202210/investigating-adverse-events-following-immunisation-with-pneumococcal-polysaccharide-vaccine-using-electronic-general-practice-data
#19
L Trinh, K Macartney, P McIntyre, C Chiu, A Dey, R Menzies
BACKGROUND: In early 2011, following an increased number of reports of severe vaccine-related injection site reactions, Australian authorities recommended against administering repeat doses of the 23-valent pneumococcal polysaccharide vaccine (23vPPV) in otherwise healthy adults. The aim of this study was to assess a source of electronic medical record data from primary care providers (General Practitioners, GPs), for validity and ability to retrospectively detect this adverse event signal...
February 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28196715/safety-of-the-oral-cholera-vaccine-in-pregnancy-retrospective-findings-from-a-subgroup-following-mass-vaccination-campaign-in-dhaka-bangladesh
#20
Ashraful Islam Khan, Mohammad Ali, Fahima Chowdhury, Amit Saha, Iqbal Ansary Khan, Arifuzzaman Khan, Afroza Akter, Muhammad Asaduzzaman, Md Taufiqul Islam, Alamgir Kabir, Young Ae You, Nirod Chandra Saha, Alejandro Cravioto, John D Clemens, Firdausi Qadri
BACKGROUND: Pregnant women are vulnerable to complications of cholera. Killed oral cholera vaccines (OCV) are not recommended for pregnant women though there is no evidence of harmful effects during pregnancy. We evaluated the effect of a killed OCV, Shanchol™, on pregnancy outcomes during an effectiveness trial of the vaccine in urban Bangladesh. METHODOLOGY: Individuals ⩾1year were invited to participate in the trial, conducted in 2011 in Dhaka, Bangladesh...
February 11, 2017: Vaccine
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