scholarly journals Vaccines against Meningococcal Diseases

2020 ◽  
Vol 8 (10) ◽  
pp. 1521
Author(s):  
Mariagrazia Pizza ◽  
Rafik Bekkat-Berkani ◽  
Rino Rappuoli
Keyword(s):  
Conjugate Vaccine ◽  
Meningococcal Disease ◽  
Vaccine Development ◽  
Health Concern ◽  
Global Public Health ◽  
Public Health Concern ◽  
Conjugate Vaccines ◽  
Vaccination Programs ◽  
Meningitis Belt ◽  
Life Threatening

Neisseria meningitidis is the main cause of meningitis and sepsis, potentially life-threatening conditions. Thanks to advancements in vaccine development, vaccines are now available for five out of six meningococcal disease-causing serogroups (A, B, C, W, and Y). Vaccination programs with monovalent meningococcal serogroup C (MenC) conjugate vaccines in Europe have successfully decreased MenC disease and carriage. The use of a monovalent MenA conjugate vaccine in the African meningitis belt has led to a near elimination of MenA disease. Due to the emergence of non-vaccine serogroups, recommendations have gradually shifted, in many countries, from monovalent conjugate vaccines to quadrivalent MenACWY conjugate vaccines to provide broader protection. Recent real-world effectiveness of broad-coverage, protein-based MenB vaccines has been reassuring. Vaccines are also used to control meningococcal outbreaks. Despite major improvements, meningococcal disease remains a global public health concern. Further research into changing epidemiology is needed. Ongoing efforts are being made to develop next-generation, pentavalent vaccines including a MenACWYX conjugate vaccine and a MenACWY conjugate vaccine combined with MenB, which are expected to contribute to the global control of meningitis.

Factors associated with diarrhoea in young children and incidence of symptomatic rotavirus infection in rural West Bengal, India

2014 ◽  
Vol 142 (9) ◽  
pp. 1848-1858 ◽  
Author(s):  
S. PANDA ◽  
A. K. DEB ◽  
M. CHAWLA-SARKAR ◽  
T. RAMAMURTHY ◽  
S. GANGULY ◽  
...  
Keyword(s):  
West Bengal ◽  
Vaccine Development ◽  
Multivariate Model ◽  
Health Concern ◽  
Severe Illness ◽  
Global Public Health ◽  
Public Health Concern ◽  
Factors Associated ◽  
Stool Specimens ◽  
Behavioural Factors

SUMMARYSocio-behavioural factors and pathogens associated with childhood diarrhoea are of global public health concern. Our survey in 696 children aged ⩽2 years in rural West Bengal detected rotavirus as sole pathogen in 8% (17/199) of diarrhoeic stool specimens. Other organisms were detected along with rotavirus in 11% of faecal specimens. A third of the children with rotavirus diarrhoea, according to Vesikari score, had severe illness. The top four rotavirus genotypes were G9P[4] (28%), G1P[8] (19%), G2P[4] (14%) and G8P[4] (8%). In the multivariate model, the practice of ‘drawing drinking water by dipping a pot in the storage vessel’ [adjusted odds ratio (aOR) 2·21, 95% confidence interval (CI) 1·03–4·74,P = 0·041], and ‘children aged ⩽6 months with non-exclusive breastfeeding’ (aOR 2·07, 95% CI 1·1–3·82,P = 0·024) had twice the odds of having diarrhoea. Incidence of rotavirus diarrhoea was 24/100 child-years in children aged >6–18 months, 19/100 child-years in children aged >18–24 months and 5/100 child-years in those aged ⩽6 months. Results have translational implications for future interventions including vaccine development.

scholarly journals Impact and effectiveness of meningococcal vaccines: a review

2017 ◽  
Vol 41 ◽  
pp. 1
Author(s):  
Lucia Helena De Oliveira ◽  
Barbara Jauregui ◽  
Ana Flavia Carvalho ◽  
Norberto Giglio
Keyword(s):  
Conjugate Vaccine ◽  
Meningococcal Disease ◽  
Age Groups ◽  
Epidemiological Surveillance ◽  
Surveillance Systems ◽  
Protein Subunit ◽  
Conjugate Vaccines ◽  
Vaccination Programs ◽  
Meta Analyses ◽  
The Impact

Objectives.To summarize and critically evaluate the evidence on the impact and effectiveness of meningococcal vaccination programs around the world in order to inform decisionmaking in Latin America and the Caribbean.Methods.A review of the literature was conducted following several components of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed Central® was searched for papers published in any language from January 1999 – March 2017.Results.In all, 32 studies were included, most of which evaluated the meningococcal C conjugate vaccine. Fourteen studies measured effectiveness and 30 measured impact. The effectiveness of polysaccharide vaccines was 65% – 83.7% (different age groups), while the effectiveness of the conjugate vaccines was 66% – 100%. Incidence decline of laboratory-confirmed meningococcal disease for the conjugate vaccine ranged from 77% – 100% among different ages groups. The only study that evaluated the protein subunit vaccine reported a vaccine effectiveness of 82.9%.Conclusions.The studies reviewed show impact and effectiveness of both polysaccharide vaccines and conjugate vaccines on vaccine-serogroup meningococcal disease. The conjugate vaccines, however, show higher impact and effectiveness with longer-lasting protection over the polysaccharide vaccines. Given the variance in potential use of a meningococcal vaccine, epidemiological surveillance systems should be strengthened to inform national decisions.

scholarly journals Eliminating Meningococcal Epidemics From the African Meningitis Belt: The Case for Advanced Prevention and Control Using Next-Generation Meningococcal Conjugate Vaccines

2019 ◽  
Vol 220 (Supplement_4) ◽  
pp. S274-S278 ◽  
Author(s):  
Mark R Alderson ◽  
F Marc LaForce ◽  
Ajoke Sobanjo-ter Meulen ◽  
Angela Hwang ◽  
Marie-Pierre Preziosi ◽  
...  
Keyword(s):  
Conjugate Vaccine ◽  
Prevention And Control ◽  
Vaccine Development ◽  
Next Generation ◽  
Meningococcal Infections ◽  
Conjugate Vaccines ◽  
Meningitis Belt ◽  
And Control ◽  
New Vaccines

AbstractThe introduction and rollout of a meningococcal serogroup A conjugate vaccine, MenAfriVac, in the African meningitis belt has eliminated serogroup A meningococcal infections for >300 million Africans. However, serogroup C, W, and X meningococci continue to circulate and have been responsible for focal epidemics in meningitis belt countries. Affordable multivalent meningococcal conjugate vaccines are being developed to prevent these non-A epidemics. This article describes the current epidemiologic situation and status of vaccine development and highlights questions to be addressed to most efficiently use these new vaccines.

scholarly journals Conjugate vaccines for enteric fever: proceedings of a meeting organized in New Delhi, India in 2009

2010 ◽  
Vol 4 (06) ◽  
pp. 404-411 ◽  
Author(s):  
Audino Podda ◽  
Allan James Saul ◽  
Rashmi Arora ◽  
Zulfiqar Bhutta ◽  
Anju Sinha ◽  
...  
Keyword(s):  
South Asia ◽  
Conjugate Vaccine ◽  
Enteric Fever ◽  
Vaccine Development ◽  
Severe Disease ◽  
Age Groups ◽  
New Combination ◽  
Conjugate Vaccines ◽  
Vaccination Programs ◽  
Young Infants

Enteric fever is responsible for significant morbidity in South Asia and high prevalence of severe disease is seen in children under two years of age. Effective typhoid vaccines are available, but they cannot be used for children under two years of age and also have some limitations in older age groups. Participants supported development of a Salmonella Typhi conjugate vaccine able to induce effective, long-lasting immunity in young children. The role of Salmonella Paratyphi A as a cause of enteric fever was discussed and consensus reached that a bivalent S. Typhi-S. Paratyphi A conjugate vaccine is highly desirable; however, considering disease epidemiology and the advanced status of vaccine development, rapid introduction of monovalent S. Typhi conjugate vaccine into vaccination programs of South Asia was recommended. Prevention should be emphasized, available vaccines used, and efforts toward improving sanitation continued. Success of the new vaccine will depend on several factors, including delivery costs and governmental ability to adopt and implement suitable immunization programs. To ensure good immunization coverage, the conjugate vaccine could be administered either to young infants, concomitantly with infant EPI vaccines, or to older infants, concomitantly with measles vaccine, currently given at 9 to 12 months. The need for new combination vaccines, containing both EPI and typhoid antigens, was discussed as a tool to increase coverage and reduce the number of injections and priority conflicts in a crowded infant vaccination schedule. However, stand-alone enteric fever conjugate vaccines would allow more flexibility to immunize different age groups and therefore should be rapidly developed.

An Overview of Dementias

2012 ◽  
Vol 21 (3) ◽  
pp. 75-84
Author(s):  
Venkata Vijaya K. Dalai ◽  
Jason E. Childress ◽  
Paul E Schulz
Keyword(s):  
Clinical Presentation ◽  
Treatment Options ◽  
Current Treatment ◽  
Great Variability ◽  
Health Concern ◽  
Public Health Concern ◽  
Life Threatening ◽  
The Common ◽  
Neurodegenerative Dementias ◽  
Made In

Dementia is a major public health concern that afflicts an estimated 24.3 million people worldwide. Great strides are being made in order to better diagnose, prevent, and treat these disorders. Dementia is associated with multiple complications, some of which can be life-threatening, such as dysphagia. There is great variability between dementias in terms of when dysphagia and other swallowing disorders occur. In order to prepare the reader for the other articles in this publication discussing swallowing issues in depth, the authors of this article will provide a brief overview of the prevalence, risk factors, pathogenesis, clinical presentation, diagnosis, current treatment options, and implications for eating for the common forms of neurodegenerative dementias.

SARS-COV2 virus and Coronavirus disease (COVID-19)

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 977-982
Author(s):  
Mohamed J. Saadh ◽  
Bashar Haj Rashid M ◽  
Roa’a Matar ◽  
Sajeda Riyad Aldibs ◽  
Hala Sbaih ◽  
...  
Keyword(s):  
Close Contact ◽  
Antiviral Agents ◽  
Health Concern ◽  
The Novel ◽  
Global Public Health ◽  
Fatal Disease ◽  
Mild Disease ◽  
Life Threatening ◽  
Novel Coronavirus

SARS-COV2 virus causes Coronavirus disease (COVID-19) and represents the causative agent of a potentially fatal disease that is of great global public health concern. The novel coronavirus (2019) was discovered in 2019 in Wuhan, the market of the wet animal, China with viral pneumonia cases and is life-threatening. Today, WHO announces COVID-19 outbreak as a pandemic. COVID-19 is likely to be zoonotic. It is transmitted from bats as intermediary animals to human. Also, the virus is transmitted from human to human who is in close contact with others. The computerized tomographic chest scan is usually abnormal even in those with no symptoms or mild disease. Treatment is nearly supportive; the role of antiviral agents is yet to be established. The SARS-COV2 virus spreads faster than its two ancestors, the SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV), but has lower fatality. In this article, we aimed to summarize the transmission, symptoms, pathogenesis, diagnosis, treatment, and vaccine to control the spread of this fatal disease.

scholarly journals Probiotics as a Possible Strategy for the Prevention and Treatment of Allergies. A Narrative Review

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 701
Author(s):  
Aroa Lopez-Santamarina ◽  
Esther Gonzalez Gonzalez ◽  
Alexandre Lamas ◽  
Alicia del Carmen Mondragon ◽  
Patricia Regal ◽  
...  
Keyword(s):  
Allergic Diseases ◽  
Urban Environments ◽  
Probiotic Bacteria ◽  
Health Concern ◽  
Global Public Health ◽  
Cytokine Release ◽  
Public Health Concern ◽  
Beneficial Effects ◽  
Opportunistic Bacteria

Allergies are an increasing global public health concern, especially for children and people living in urban environments. Allergies impair the quality of life of those who suffer from them, and for this reason, alternatives for the treatment of allergic diseases or reduction in their symptoms are being sought. The main objective of this study was to compile the studies carried out on probiotics as a possible therapy for allergies. The most studied allergies on which probiotics have been shown to have a beneficial effect are rhinitis, asthma, and atopic dermatitis. Most studies have studied the administration of Lactobacillus and Bifidobacterium spp. in children and have shown beneficial effects, such as a reduction in hyperreactivity and inflammation caused by allergens and a decrease in cytokine release, among other beneficial effects. In the case of children, no clear beneficial effects were found in several studies, and the potential risk from the use of some opportunistic bacteria, such as probiotics, seems controversial. In the studies that reported beneficial results, these effects were found to make allergy symptoms less aggressive, thus reducing morbidity in allergy sufferers. The different effects of the same probiotic bacteria on different patients seem to reinforce the idea that the efficacy of probiotics is dependent on the microbial species or strain, its derived metabolites and byproducts, and the gut microbiota eubiosis of the patient. This study is relevant in the context of allergic diseases, as it provides a broader understanding of new alternatives for the treatment of allergies, both in children, who are the main sufferers, and adults, showing that probiotics, in some cases, reduce the symptoms and severity of such diseases.

Phthalimide Analogs for Antimalarial Drug Discovery

2021 ◽  
Author(s):  
Meenakshi Bansal ◽  
Charu Upadhyay ◽  
Poonam Singh ◽  
Sumit Kumar ◽  
Brijesh Rathi
Keyword(s):  
Public Health ◽  
Drug Discovery ◽  
Antimalarial Drug ◽  
Health Concern ◽  
Public Health Concern ◽  
Major Public Health Concern ◽  
The World ◽  
Life Threatening

Malaria remains as one of the most life-threatening diseases and thus major public health concern all around the world. The disease becomes devastating if not treated with proper medication on...

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