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Many successful candidate vaccines capable of combating tumours in animal models come to an untimely end because of the costs associated with the approval and production of the GMP-grade materials, which are usually of biological origin, for use in humans. We have used a GMP-compatible method to chemically synthesize a pure synthetic E7 protein of the human papillomavirus type 16 (HPV16-E7). This...
We studied salivary antibodies induced by a seven-valent pneumococcal conjugate vaccine (PncCRM). Healthy Finnish children (n = 115), a subcohort of the Finnish Otitis Media (FinOM) Vaccine Trial, were immunised either with the PncCRM or a control vaccine (hepatitis B) at the age of 2, 4, 6, and 12 months. Salivary IgG, IgA, IgA1, IgA2 and sIg for serotypes 6B, 14, 19F, and 23F were measured at 7...
Hepatitis B infection is highly endemic among the primitive tribes of Andaman and Nicobar Islands, India and it is necessary to initiate hepatitis B vaccination for control of this infection. A pilot project of mass hepatitis B vaccination using indigenously developed vaccine was initiated among Nicobarese tribe of Car Nicobar Island. Sero-protection rates after second and third year were 89% and...
The degree of epitope density has been shown to be a critical factor influencing the magnitude of epitope-specific responses. However, whether high epitope density in just a single protein molecule can still enhance the humoral response or, more importantly, the protective immunity, has not been determined. To test this, five glutathione-S-transferase fusion proteins bearing various numbers of copies...
Complement component C3, which plays an important role in both the innate and adaptative immune response, is present at low level in human infants. We show here that: (i) serum C3 amount is weak also in infant mice, (ii) these young animals fail to upregulate C3 to adult levels following tetanus toxoid immunization, (iii) neonatal macrophages have a limited capacity to synthesize C3 upon LPS exposure,...
This study was set up to examine whether an influenza vaccine or an influenza vaccine in combination with pneumococcal vaccine can be used as a model to study responses to mild stimulation of the inflammatory system.In this study, 19 subjects received the influenza vaccine, 20 subjects the combination of influenza and pneumococcal vaccine. CRP and prothrombin fragment 1 and 2 (F1 + 2) were measured...
Edible vaccines have been generated from both transgenic plants as well as from plant viral vectors. Here, we have taken the best attributions of both systems and designed a minimalized version of the bean yellow dwarf geminivirus (BeYDV)-based replicon consisting of the cis-acting elements required for BeYDV replication as a means to express foreign genes in a plant cell line. Replication can be...
We evaluated the usefulness of skin test prepared by inactivation of vaccinia vaccine in predicting immunity to vaccinia. Skin test was injected to 77 healthy adults. Twenty had a recent smallpox vaccination (group 1). Thirty-seven were long term vacinees (group 2), while 20 subjects had never been vaccinated for smallpox (group 3).Mean size of induration was 7.9, 5.3 and 0.4mm for subjects from groups...
The reduced antigen content diphtheria, tetanus and pertussis (dTpa) vaccine (Boostrix™) has been shown to induce a strong booster response to all the vaccine components in 4–6 year olds. However, anti-diphtheria antibody levels were observed to be lower when compared to the “full strength” paediatric DTPa vaccine. To assess the impact of this difference on long-term protection, a mathematical model...
Case–control study designed to determine the effectiveness of an MF59-adjuvanted influenza vaccine in the population aged 65 years and older living in the community. Detailed health histories were obtained on both cases and controls that included a functional measure of co-morbidity (Barthel Index). Subjects were all eligible persons admitted to various hospitals with a diagnosis of pneumonia during...
During February 2003 a number of Australian sailors were returned home from their deployment to the Persian Gulf after refusing anthrax vaccination. This paper examines the media coverage of this episode as a case study in how controversies about vaccine safety escalate.Frame analysis of articles from major Australian newspapers (n = 83) and transcripts of radio and television news and current affairs...
Protective responses generated by vaccination with an immuno-stimulating complex (ISCOM)-based vaccine for equine influenza (EQUIP F), containing a new ‘American lineage’ H3N8 virus, were studied. Seven ponies in the vaccine group received two intramuscular injections of EQUIP F given 6 weeks apart. Aerosol challenge with an A/eq/Newmarket/1/93 reference strain 4 weeks after booster vaccination resulted...
Lifetime protection against pertussis has been adopted as a goal of immunization programs in Canada. To anticipate adult coverage with a combined product containing tetanus (T) and diphtheria (d) toxoids and acellular pertussis (aP) vaccine as a booster dose, we conducted a survey of households in British Columbia, Canada.In a random telephone survey involving 800 adults, 25 years of age and older,...
Concerns have been raised about the beliefs and behaviours of chiropractors related to immunization; however, none have systematically examined the relationships between beliefs and behaviours.We examine the immunization-related behaviours and beliefs of chiropractors in Alberta, Canada, and explore the relationship of beliefs to immunization-related behaviours with patients.Data were collected in...
Epitopes of universal character are needed when designing subunit vaccines against infectious diseases such as malaria. We have compared the immunogenicity of B-cell epitopes from the Plasmodium falciparum antigen repeats DPNANPNV (PfCS protein) and VTEEI (Pf332) when assembled with four different universal T-cell epitopes in diepitope multiple antigen peptides (MAP). T-epitopes employed were from...
The aim of the present study was to examine the efficacy of postexposure vaccination with Varilrix ® in the household setting. A randomized, double-blind, placebo-controlled design was used. Twenty-two children received the varicella vaccine and 20, a placebo. The relative risk of developing varicella with a placebo compared with the vaccine was 1.1 (95% confidence interval 0.55–2.21). The...
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