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Vaccine in developing countries

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https://www.readbyqxmd.com/read/28535276/live-attenuated-pertussis-vaccine-bpze1-protects-baboons-against-b-pertussis-disease-and-infection
#1
Camille Locht, James F Papin, Sophie Lecher, Anne-Sophie Debrie, Marcel Thalen, Ken Solovay, Keith Rubin, Nathalie Mielcarek
Evidence suggests that the resurgence of pertussis in many industrialized countries may result from the failure of current vaccines to prevent nasopharyngeal colonization by Bordetella pertussis, the principal causative agent of whooping cough. Here, we used a baboon model to test the protective potential of the novel, live attenuated pertussis vaccine candidate BPZE1. A single intranasal/intratracheal inoculation of juvenile baboons with BPZE1 resulted in transient nasopharyngeal colonization and induction of IgG and IgA to all antigens tested, while causing no adverse symptoms or leukocytosis...
May 23, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28532182/tackling-a-novel-lethal-virus-a-focus-on-h7n9-vaccine-development
#2
Irina Isakova-Sivak, Larisa Rudenko
Avian-origin H7N9 influenza viruses first detected in humans in China in 2013 continue to cause severe human infections with a mortality rate close to 40%. These viruses are acknowledged as the subtype most likely to cause the next influenza pandemic. Areas covered: Here we review published data on the development of H7N9 influenza vaccine candidates and their evaluation in preclinical and clinical trials identified on PubMed database with the term "H7N9 influenza vaccine". In addition, a search with the same term was done on ClinicalTrials...
May 22, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28530308/-influenza-vaccination-among-healthcare-workers-the-data-and-the-duty
#3
Sonia Habib, Shmuel Rishpon, Itamar Grotto, Arnon Afek
Seasonal influenza is a significant disease affecting public health due to substantial morbidity and mortality and a high economic burden. in view of its high propensity for genetic mutations, the virus can easily evade preexisting immunity acquired from prior exposure to it, thereby causing severe seasonal epidemics. Influenza vaccination has been shown to be safe and effective. In many countries, including Israel, it is recommended to all members of the population aged 6 months and older, especially those with a higher risk of developing severe complications...
January 2017: Harefuah
https://www.readbyqxmd.com/read/28530057/-hansen-s-disease-in-israel
#4
REVIEW
Leon Gilead, Ruth Wexler
Hansen's disease (HD) is an anthropophylic, infectious, chronic disease, caused by Mycobacterium leprae. The systemic disease, affecting both males and females at any age, involves mainly the skin and the peripheral nerves located in the limbs close to the skin. Traditionally the treatment of HD patients was entrusted to dermatologists. Current drug therapy given at an early stage can prevent many of the complications, and enables patients to go on with life. In 95% of the population there is an innate immunity, which following exposure, enables the development of an effective immune response preventing the development of overt clinical disease...
October 2016: Harefuah
https://www.readbyqxmd.com/read/28529975/phylogenetic-analyses-suggest-that-factors-other-than-the-capsid-protein-play-a-role-in-the-epidemic-potential-of-gii-2-norovirus
#5
Kentaro Tohma, Cara J Lepore, Lauren A Ford-Siltz, Gabriel I Parra
Norovirus is the leading cause of acute gastroenteritis worldwide. For over two decades, a single genotype (GII.4) has been responsible for most norovirus-associated cases. However, during the winter of 2014 to 2015, the GII.4 strains were displaced by a rarely detected genotype (GII.17) in several countries of the Asian continent. Moreover, during the winter of 2016 to 2017, the GII.2 strain reemerged as predominant in different countries worldwide. This reemerging GII.2 strain is a recombinant virus that presents a GII...
May 2017: MSphere
https://www.readbyqxmd.com/read/28529918/advances-in-dyslipidemia-management-for-prevention-of-atherosclerosis-pcsk9-monoclonal-antibody-therapy-and-beyond
#6
REVIEW
Nathan D Wong, Paul D Rosenblit, Robert S Greenfield
In 2003, select families with familial hypercholesterolemia were first identified to have gain-of-function mutations for proprotein convertase subtilisin kexin type 9 (PCSK9) followed, in 2006, by the identification of those with lifelong low levels of LDL-C and lowered atherosclerotic cardiovascular disease (ASCVD) risk who had loss-of-function PCSK9 mutations. These discoveries led to the rapid development of PSCK9-targeted monoclonal antibody (PCSK9 mAb) therapies and, in 2015, 2 'fully-humanized' PCSK9 mAbs (alirocumab and evolocumab) were marketed in the United States, Europe, and other countries...
April 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28528761/responding-to-a-cvdpv1-outbreak-in-ukraine-implications-challenges-and-opportunities
#7
Nino Khetsuriani, Ihor Perehinets, Dorit Nitzan, Dragoslav Popovic, Thomas Moran, Vusala Allahverdiyeva, Shahin Huseynov, Eugene Gavrilin, Liudmyla Slobodianyk, Olha Izhyk, Anna Sukhodolska, Sahar Hegazi, Katerina Bulavinova, Sergei Platov, Patrick O'Connor
BACKGROUND: The European Region, certified polio-free in 2002, remains at risk of wild poliovirus reintroduction and emergence of circulating vaccine-derived polioviruses (cVDPV) until global polio eradication is achieved, as demonstrated by the cVDPV1 outbreak in Ukraine in 2015. METHODS: We reviewed epidemiologic, clinical and virology data on cVDPV cases, surveillance and immunization coverage data, and reports of outbreak-related surveys, country missions, and expert group meetings...
May 18, 2017: Vaccine
https://www.readbyqxmd.com/read/28527688/clinical-development-of-a-var2csa-based-placental-malaria-vaccine-pamvac-quantifying-vaccine-antigen-specific-memory-b-t-cell-activity-in-beninese-primigravidae
#8
Komi Gbédandé, Nadine Fievet, Firmine Viwami, Sem Ezinmegnon, Saadou Issifou, Jean-Philippe Chippaux, Yannelle Dossou, Kabirou Moutairou, Achille Massougbodji, Nicaise Ndam, Willem Adriaan de Jongh, T Max M Søgaard, Ali Salanti, Morten A Nielsen, Meral Esen, Benjamin Mordmüller, Philippe Deloron, Adrian J F Luty
BACKGROUND: The antigen VAR2CSA plays a pivotal role in the pathophysiology of pregnancy-associated malaria (PAM) caused by Plasmodium falciparum. A VAR2CSA-based vaccine candidate, PAMVAC, is under development by an EU-funded multi-country consortium (PlacMalVac project). As part of PAMVAC's clinical development, we quantified naturally acquired vaccine antigen-specific memory B and T cell responses in Beninese primigravidae recruited at the beginning of pregnancy and followed up to delivery and beyond...
May 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28527534/austerity-and-the-sector-wide-approach-to-health-the-mozambique-experience
#9
James Pfeiffer, Sarah Gimbel, Baltazar Chilundo, Stephen Gloyd, Rachel Chapman, Kenneth Sherr
Fiscal austerity policies imposed by the IMF have reduced investments in social services, leaving post-independence nations like Mozambique struggling to recover from civil war and high disease burden. By 2000, a sector-wide approach (SWAp) was promoted to maximize aid effectiveness. 'Like-minded' bilateral donors, from Europe and Canada, promoted a unified approach to health sector support focusing on joint planning, common basket funding, and streamlined monitoring and evaluation to improve sector coordination, amplify country ownership, and build sustainable health systems...
May 4, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28527491/development-of-live-attenuated-bacterial-vaccines-targeting-escherichia-coli-heat-labile-and-heat-stable-enterotoxins
#10
Chengru Zhu, Prashanth Setty, Edgar C Boedeker
Enterotoxigenic Escherichia coli (ETEC), defined by the production of heat labile (LT) and/or heat stable (ST) toxins, are major causes of diarrhea in animals, children in developing countries and to travelers. No broadly protective ETEC vaccine is available, largely because of the difficulty in inducing immunity to the small ST molecule. To take advantage of the demonstration (Liu et al., 2011; Zhang et al., 2013, 2010) that genetically produced fusions of mutant ST with LT subunits can induce effective immunity against both toxins, we engineered a live attenuated vaccine vector strain of E...
April 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28527257/-polyclonal-antibodies-against-recombinant-dengue-virus-ns3-protein
#11
Liliana Morales, Myriam L Velandia, María Angélica Calderon, Jaime E Castellanos, Jacqueline Chaparro-Olaya
INTRODUCTION: Dengue is a disease caused by one of four serotypes of the dengue virus (DENV) and is endemic in approximately 130 countries. The incidence of dengue has increased dramatically in recent decades, as well as the frequency and magnitude of outbreaks. Despite all efforts, there are no prophylactic or therapeutic treatments for the disease. Accordingly, research on the processes governing the DENV infection cycle is essential to develop vaccines or antiviral therapies. One of themost attractive DENV molecules to investigate is nonstructural protein 3 (NS3), which is essential for viral replication and a major immune target for infection...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526065/malnutrition-and-poor-oral-health-status-are-major-risks-among-primary-school-children-at-lasbela-balochistan-pakistan
#12
Muhammad Ayaz Mustufa, Abdul Karim Jamali, Ifra Sameen, Fateh Muhammad Burfat, Mir Yousaf Baloch, Abdul Hameed Baloch, Ghulam Rasool Baloch, Shazia Kulsoom Lashari, Sobiya Mohiuddin Ayaz, Muhammad Younus Baloch
BACKGROUND: This survey was focusing on health and oral hygiene status of primary school children at Lasbela district considering the comparatively less developed and socio demographically deprived part of the Country. METHODS: A cross sectional survey was conducted to determine the health status of primary school children in seven tehseels of district Lasbela, Balochistan after applying proportionate sampling technique from March 2015 to July 2015. Field teams visited assigned schools to screen children and collect health related data on predesigned and pre coded proforma...
May 19, 2017: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/28521810/estimation-of-the-burden-of-varicella-in-europe-before-the-introduction-of-universal-childhood-immunization
#13
Margarita Riera-Montes, Kaatje Bollaerts, Ulrich Heininger, Niel Hens, Giovanni Gabutti, Angel Gil, Bayad Nozad, Grazina Mirinaviciute, Elmira Flem, Audrey Souverain, Thomas Verstraeten, Susanne Hartwig
BACKGROUND: Varicella is generally considered a mild disease. Disease burden is not well known and country-level estimation is challenging. As varicella disease is not notifiable, notification criteria and rates vary between countries. In general, existing surveillance systems do not capture cases that do not seek medical care, and most are affected by underreporting and underascertainment. We aimed to estimate the overall varicella disease burden in Europe to provide critical information to support decision-making regarding varicella vaccination...
May 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28521748/contextualizing-willingness-to-participate-recommendations-for-engagement-recruitment-enrolment-of-kenyan-msm-in-future-hiv-prevention-trials
#14
Monika Doshi, Lisa Avery, Ronnie P Kaddu, Mary Gichuhi, Gloria Gakii, Elsabé du Plessis, Sumit Dutta, Shamshad Khan, Joshua Kimani, Robert R Lorway
BACKGROUND: The HIV epidemic among men who have sex with men (MSM) continues to expand globally. The addition of an efficacious, prophylactic vaccine to combination prevention offers immense hope, particularly in low- and middle- income countries which bear the greatest global impact. However, in these settings, there is a paucity of vaccine preparedness studies that specifically pertain to MSM. Our study is the first vaccine preparedness study among MSM and female sex workers (FSWs) in Kenya...
May 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28515625/overview-of-the-impact-of-typhoid-and-paratyphoid-fever-utility-of-ty21a-vaccine-vivotif%C3%A2
#15
REVIEW
D Amicizia, L Arata, F Zangrillo, D Panatto, R Gasparini
Cases of diarrhoeal disease number from 1.7 to 5 billion per year worldwide. One of the main causes of diarrhoeal disease is typhoid fever, which is a potentially life-threatening multi-systemic illness. According to the most recent estimates, a total of 26.9 million typhoid fever episodes occurred in 2010. The geographical distribution of the disease differs widely; in developed countries, the incidence rate per 100,000 per year varies from < 0.1 to 0.3, and the disease mainly affects people who travel to endemic areas located in low- and middle-income countries...
March 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28515303/spontaneous-and-vaccine-induced-clearance-of-mus-musculus-papillomavirus-type-1-mmupv1-muspv1-infection
#16
Rosie T Jiang, Joshua W Wang, Shiwen Peng, Tsui-Chin Huang, Chenguang Wang, Fabiana Cannella, Yung-Nien Chang, Raphael P Viscidi, Simon R A Best, Chien-Fu Hung, Richard B S Roden
Mus musculus Papillomavirus1 (MmuPV1/MusPV1) induces persistent papillomas in immunodeficient mice but not common laboratory strains. To facilitate study of immune control, we sought an outbred and immune competent laboratory mouse strain in which persistent papillomas could be established. We found that challenge of SKH1 mice (Crl:SKH1-Hrhr) by scarification on their tail with MmuPV1 resulted in three clinical outcomes: 1) persistent (>2 months) papillomas (∼20%), 2) transient papillomas that spontaneously regress typically within 2 months (∼15%), 3) no visible papillomas and viral clearance (∼65%)...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28513461/the-importance-of-bordetella-pertussis-strains-which-do-not-produce-virulence-factors-in-the-epidemiology-of-pertussis
#17
Maciej Polak, Anna Lutyńska
Bordetella pertussis strains, which have lost the ability to produce antigens, such as pertactin - Prn, pertussis toxin - Ptx, filamentous haemagglutinin - FHA, fimbriae type 2 and 3 - Fim 2 and 3, tracheal colonization factor - TcfA, have recently been isolated in countries with a high vaccination coverage. The emergence of such isolates might have resulted from B. pertussis natural evolution course or adaptive mechanisms, allowing increased circulation of the pathogen in vaccinated populations. So far, the majority of described mutants were deficient in the Prn production...
May 9, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28513340/questions-about-cervical-and-breast-cancer-screening-knowledge-practice-and-outcomes-a-review-of-demographic-and-health-surveys
#18
Laura Viens, Doug Perin, Virginia Senkomago, Antonio Neri, Mona Saraiya
United Nation's Sustainable Development Goals and the World Health Organization's Global Monitoring Framework support a strong global commitment to reducing the high burden of cervical and breast cancers among low- and middle-income countries. Strategies include vaccination, screening, and early diagnosis. Population-based surveys, such as those conducted by the Demographic and Health Surveys (DHS) Program, can collect the information needed to guide cancer control efforts in a standardized comparable manner...
May 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28512300/overview-of-influenza-vaccination-policy-in-beijing-china-current-status-and-future-prospects
#19
Yi Zhang, David J Muscatello, Quanyi Wang, Peng Yang, Jiang Wu, Chandini Raina MacIntyre
Vaccination is the best available way to prevent influenza infections and related complications. Little information is available on vaccination policy in the world's most populous country, China. In China, influenza vaccine is not included in the national immunization programme. Citizens seek the vaccine on their own. Since 2007, Beijing, ahead of most cities in China, has offered free influenza vaccine for seniors aged at least 60 years and for primary and middle school students. There has been limited evaluation of the policy...
May 16, 2017: Journal of Public Health Policy
https://www.readbyqxmd.com/read/28511068/biotechnology-and-the-transformation-of-vaccine-innovation-the-case-of-the-hepatitis-b-vaccines-1968-2000
#20
Farah Huzair, Steve Sturdy
The approval, from 1986, of a series of recombinant hepatitis B vaccines was a landmark both in the growth of biotechnology and in the development of the vaccine innovation system. In this paper, we show how the early development of the hepatitis B vaccines was shaped by a political and economic context that newly favoured commercialisation of academic research, including the appropriation and management of intellectual property; we elucidate the contingent interests and motivations that led new biotechnology companies and established pharmaceutical businesses to invest in developing recombinant vaccines specifically against hepatitis B; and we show how these and other factors combined to make those vaccines an unexpected commercial success...
May 13, 2017: Studies in History and Philosophy of Biological and Biomedical Sciences
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