keyword
MENU ▼
Read by QxMD icon Read
search

Vaccine delivery

keyword
https://www.readbyqxmd.com/read/28816860/management-of-chronic-hepatitis-b-in-pregnancy
#1
Jie Li, Matthew S Chang, Tram T Tran, Mindie H Nguyen
Chronic hepatitis B virus (HBV) infection due to mother-to-child transmission during the perinatal period remains an important global health problem. Despite standard passive-active immunoprophylaxis with hepatitis B immunoglobulin and hepatitis B vaccine in neonates, up to 8.5% of newborns still acquire HBV infection. Thus, management of chronic HBV during pregnancy and strategies to prevent mother-to-child transmission are important steps in eradicating or reducing the global burden of chronic HBV infection...
August 14, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28812836/understanding-internal-accountability-in-nigeria-s-routine-immunization-system-perspectives-from-government-officials-at-the-national-state-and-local-levels
#2
Daniel J Erchick, Asha S George, Chukwunonso Umeh, Chizoba Wonodi
BACKGROUND: Routine immunization coverage in Nigeria has remained low, and studies have identified a lack of accountability as a barrier to high performance in the immunization system. Accountability lies at the heart of various health systems strengthening efforts recently launched in Nigeria, including those related to immunization. Our aim was to understand the views of health officials on the accountability challenges hindering immunization service delivery at various levels of government...
December 10, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812281/preclinical-development-of-an-automated-injection-device-for-intradermal-delivery-of-a-cell-based-therapy
#3
Giulia Leoni, Alex Lyness, Patrick Ginty, Rindi Schutte, Gopalan Pillai, Gayatri Sharma, Paul Kemp, Natalie Mount, Michaela Sharpe
Current methods for intradermal delivery of therapeutic products in clinical use include manual injection via the Mantoux technique and the use of injection devices, primarily developed for the delivery of vaccines and small molecules. A novel automated injection device is presented specifically designed for accurate delivery of multiple doses of product through a number of adjustable injection parameters, including injection depth, dose volume and needle insertion speed. The device was originally conceived for the delivery of a cell-based therapy to patients with skin wounds caused by epidermolysis bullosa...
August 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28812192/safety-of-vaccination-against-brucellosis-with-the-rough-strain-in-pregnant-cattle
#4
Adriana Agostini Barbosa, Ana Cristina Silva Figueiredo, Miller Pereira Palhao, Joao Henrique Moreira Viana, Carlos Antonio Carvalho Fernandes
Brucellosis is an infectious and contagious disease that profoundly impacts public health. However, in many countries, disease prevention is restricted to the vaccination of calves, and there is no prophylactic strategy for pregnant heifers and cows. The aim of this study was to evaluate the safety of the rough strain vaccine against brucellosis in pregnant cattle. Crossbred cows (N = 96) at three gestational periods (early, mid, or late pregnancy) were randomly allocated into the vaccine treatment group or to the control group...
August 15, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28811347/tifa-signaling-in-gastric-epithelial-cells-initiates-the-cag-type-4-secretion-system-dependent-innate-immune-response-to-helicobacter-pylori-infection
#5
Alevtina Gall, Ryan G Gaudet, Scott D Gray-Owen, Nina R Salama
Helicobacter pylori is a bacterial pathogen that colonizes the human stomach, causing inflammation which, in some cases, leads to gastric ulcers and cancer. The clinical outcome of infection depends on a complex interplay of bacterial, host genetic, and environmental factors. Although H. pylori is recognized by both the innate and adaptive immune systems, this rarely results in bacterial clearance. Gastric epithelial cells are the first line of defense against H. pylori and alert the immune system to bacterial presence...
August 15, 2017: MBio
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
#6
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/28809092/particle-targeting-in-complex-biological-media
#7
REVIEW
Qiong Dai, Nadja Bertleff-Zieschang, Julia A Braunger, Mattias Björnmalm, Christina Cortez-Jugo, Frank Caruso
Over the past few decades, nanoengineered particles have gained increasing interest for applications in the biomedical realm, including diagnosis, imaging, and therapy. When functionalized with targeting ligands, these particles have the potential to interact with specific cells and tissues, and accumulate at desired target sites, reducing side effects and improve overall efficacy in applications such as vaccination and drug delivery. However, when targeted particles enter a complex biological environment, the adsorption of biomolecules and the formation of a surface coating (e...
August 15, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28808657/nanoparticulate-tubular-immunostimulating-complexes-novel-formulation-of-effective-adjuvants-and-antigen-delivery-systems
#8
REVIEW
Nina Sanina, Natalia Chopenko, Andrey Mazeika, Eduard Kostetsky
New generation vaccines, based on isolated antigens, are safer than traditional ones, comprising the whole pathogen. However, major part of purified antigens has weak immunogenicity. Therefore, elaboration of new adjuvants, more effective and safe, is an urgent problem of vaccinology. Tubular immunostimulating complexes (TI-complexes) are a new type of nanoparticulate antigen delivery systems with adjuvant activity. TI-complexes consist of cholesterol and compounds isolated from marine hydrobionts: cucumarioside A2-2 (CDA) from Cucumaria japonica and monogalactosyldiacylglycerol (MGDG) from marine algae or seagrass...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28804866/virally-vectored-vaccine-delivery-medical-needs-mechanisms-advantages-and-challenges
#9
Daniel D Pinschewer
Vaccines represent one of the most successful chapters in the history of medicine. Over the past decades, the advent of recombinant cDNA technology has enabled the biomedical community to genetically engineer viruses for vaccine delivery purposes. As a starting point, this review evaluates the unmet medical needs, which drive scientists and industry to exploit such fundamentally new technology for human vaccination. The author discusses the molecular functioning, production and safety profile of replication-competent and -deficient viral vector systems, representing two fundamentally distinct classes of "genetic vaccines"...
August 14, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28803713/a-review-of-the-key-factors-to-improve-adult-immunization-coverage-rates-what-can-the-clinician-do
#10
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
#11
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
#12
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/28802753/challenges-in-immunisation-service-delivery-for-refugees-in-australia-a-health-system-perspective
#13
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/28801947/how-will-transitioning-from-cytology-to-hpv-testing-change-the-balance-between-the-benefits-and-harms-of-cervical-cancer-screening-estimates-of-the-impact-on-cervical-cancer-treatment-rates-and-adverse-obstetric-outcomes-in-australia-a-high-vaccination-coverage
#14
Louiza S Velentzis, Michael Caruana, Kate T Simms, Jie-Bin Lew, Ju-Fang Shi, Marion Saville, Megan A Smith, Sarah J Lord, Jeffrey Tan, Deborah Bateson, Michael Quinn, Karen Canfell
Primary HPV screening enables earlier diagnosis of cervical lesions compared to cytology, however, its effect on the risk of treatment has not been investigated. We estimated the cumulative lifetime risk (CLR) of cervical cancer and excisional treatment; and change in adverse obstetric outcomes in HPV unvaccinated women and cohorts offered vaccination (>70% coverage in 12-13 years) for the Australian cervical screening program. 2-yearly cytology screening (ages 18-69 years) was compared to 5-yearly primary HPV screening with partial genotyping for HPV16/18 (ages 25-74 years)...
August 12, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28795601/poly-glutamic-dendrimer-based-conjugates-for-cancer-vaccination-a-computational-design-for-targeted-delivery-of-antigens
#15
L I F Moura, N Martinho, L C Silva, T S Barata, S Brocchini, H F Florindo, M Zloh
Computational techniques are useful to predict interaction models and molecular properties for the design of drug delivery systems, such as dendrimers. This work evaluated the impact of surface modifications of mannosamine-conjugated multifunctional poly(glutamic acid) (PG)-dendrimers as nanocarriers of the tumour associated antigens (TAA) MART-1, gp100:44 and gp100:209. Molecular dynamics simulations and docking studies were performed. Nitrobenzoxadiazole (NBD)-PG-G4-dendrimer displayed 64 carboxylic groups, however, the Frontier Molecular Orbital Theory study evidenced that only 32 of those were available to form covalent bonds...
August 10, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28795466/reduced-prevalence-of-hepatitis-b-surface-antigen-positivity-among-pregnant-women-born-after-the-national-implementation-of-immunoprophylaxis-for-babies-born-to-hepatitis-b-virus-carrier-mothers-in-japan
#16
Aya Sugiyama, Masayuki Ohisa, Shintaro Nagashima, Chikako Yamamoto, Chuon Channarena, Toshiko Fujii, Tomoyuki Akita, Keiko Katayama, Yoshiki Kudo, Junko Tanaka
AIM: We aimed to estimate hepatitis B surface antigen (HBsAg) positivity among birth year-stratified pregnant women in Hiroshima, Japan, and compare prevalence rates among women between born before and after implementation of a national immunoprophylactic vaccination program for babies born to hepatitis B virus (HBV) carrier mothers in Japan. METHODS: Pregnant women who gave birth at all delivery hospitals/clinics in Hiroshima prefecture between April 1, 2010 and March 31, 2011 were eligible...
August 9, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28794134/mrna-mediates-passive-vaccination-against-infectious-agents-toxins-and-tumors
#17
Moritz Thran, Jean Mukherjee, Marion Pönisch, Katja Fiedler, Andreas Thess, Barbara L Mui, Michael J Hope, Ying K Tam, Nigel Horscroft, Regina Heidenreich, Mariola Fotin-Mleczek, Charles B Shoemaker, Thomas Schlake
The delivery of genetic information has emerged as a valid therapeutic approach. Various reports have demonstrated that mRNA, besides its remarkable potential as vaccine, can also promote expression without inducing an adverse immune response against the encoded protein. In the current study, we set out to explore whether our technology based on chemically unmodified mRNA is suitable for passive immunization. To this end, various antibodies using different designs were expressed and characterized in vitro and in vivo in the fields of viral infections, toxin exposure, and cancer immunotherapies...
August 9, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28792942/hiv-1-neutralizing-antibody-induced-by-simian-adenovirus-and-poxvirus-mva-vectored-bg505-native-like-envelope-trimers
#18
Silvia Capucci, Edmund G Wee, Torben Schiffner, Celia C LaBranche, Nicola Borthwick, Albert Cupo, Jonathan Dodd, Hansi Dean, Quentin Sattentau, David Montefiori, Per J Klasse, Rogier W Sanders, John P Moore, Tomáš Hanke
Rabbits and monkeys immunized with HIV type 1 (HIV-1) native-like BG505 SOSIP.664 (BG505s) glycoprotein trimers are known to induce antibodies that can neutralize the autologous tier-2 virus. Here, we assessed the induction of HIV-1 trimer binding and neutralizing antibody (nAb) titres when BG505s trimers were also delivered by non-replicating simian (chimpanzee) adenovirus and non-replicating poxvirus modified vaccinia virus Ankara (MVA) vaccine vectors. First, we showed that approximately two-thirds and one-third of the trimers secreted from the ChAdOx1...
2017: PloS One
https://www.readbyqxmd.com/read/28792376/construction-of-an-inactivated-typhoid-vaccine-candidate-expressing-escherichia-coli-heat-labile-enterotoxin-b-subunit-and-evaluation-of-its-immunogenicity-in-a-murine-model
#19
Boram Kim, Gayeon Won, John Hwa Lee
PURPOSE: Typhoid fever caused by Salmonella enterica serovar Typhi has contributed to the global public health burden, particularly in developing countries. In this study, an S. Typhi ghost was developed and its capacity as a vaccine candidate against typhoid fever was assessed. METHODOLOGY: An asd+ plasmid pJHL187 harbouring a ghost cassette comprising the PhiX 174 Elysis gene tightly controlled under the convergent promotor system was transformed into an asd gene-deleted mutant S...
August 10, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28790999/immunization-with-recombinant-tcdb-encapsulated-nanocomplex-induces-protection-against-clostridium-difficile-challenge-in-a-mouse-model
#20
Yi-Wen Liu, Yu-Hung Chen, Jenn-Wei Chen, Pei-Jane Tsai, I-Hsiu Huang
Clostridium difficile is considered to be one of the major cause of infectious diarrhea in healthcare systems worldwide. Symptoms of C. difficile infection are caused largely by the production of two cytotoxins: toxin A (TcdA) and toxin B (TcdB). Vaccine development is considered desirable as it would decrease the mounting medical costs and mortality associated with C. difficile infections. Biodegradable nanoparticles composed of poly-γ-glutamic acid (γ-PGA) and chitosan have proven to be a safe and effective antigen delivery system for many viral vaccines...
2017: Frontiers in Microbiology
keyword
keyword
52489
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"