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https://www.readbyqxmd.com/read/27936236/an-evaluation-of-selected-populations-for-hiv-1-vaccine-cohort-development-in-nigeria
#1
Ogbonnaya S Njoku, Mark M Manak, Robert J O'Connell, Ashley L W Shutt, Jennifer A Malia, Richard A Heipertz, Sodsai Tovanabutra, Mark J Milazzo, Gideon Akindiran Akintunde, Abraham S Alabi, Aminu Suleiman, Amos A Ogundeji, Terfa S Kene, Robbie Nelson, Ojor R Ayemoba, Darrell E Singer, Merlin L Robb, Sheila A Peel, Nelson L Michael
Development of a globally effective HIV-1 vaccine will need to encompass Nigeria, one of the hardest hit areas, with an estimated 3.2 million people living with HIV. This cross-sectional Institutional Review Board (IRB) approved study was conducted in 2009-12 at four market sites and two highway settlements sites in Nigeria to identify and characterize populations at high risk for HIV; engage support of local stakeholders; and assess the level of interest in future vaccine studies. Demographic, HIV risk data were collected by structured interviewer-administered questionnaires...
2016: PloS One
https://www.readbyqxmd.com/read/27936047/cross-neutralizing-antibodies-in-hiv-1-individuals-infected-by-subtypes-b-f1-c-or-the-b-bbr-variant-in-relation-to-the-genetics-and-biochemical-characteristics-of-the-env-gene
#2
Dalziza Victalina de Almeida, Karine Venegas Macieira, Beatriz Gilda Jegerhorn Grinsztejn, Valdiléa Gonçalves Veloso Dos Santos, Monick Lindenmeyer Guimarães
Various HIV-1 env genetic and biochemical features impact the elicitation of cross-reactive neutralizing antibodies in natural infections. Thus, we aimed to investigate cross-neutralizing antibodies in individuals infected with HIV-1 env subtypes B, F1, C or the B/Bbr variant as well as env characteristics. Therefore, plasma samples from Brazilian chronically HIV-1 infected individuals were submitted to the TZM-bl neutralization assay. We also analyzed putative N-glycosylation sites (PNGLs) and the size of gp120 variable domains in the context of HIV-1 subtypes prevalent in Brazil...
2016: PloS One
https://www.readbyqxmd.com/read/27932052/factors-associated-with-parents-attitudes-to-the-hpv-vaccination-of-their-adolescent-sons
#3
REVIEW
Gorjana Radisic, Janine Chapman, Ingrid Flight, Carlene Wilson
OBJECTIVE: The objective of the study was to identify factors associated with human papilloma virus (HPV) vaccine acceptability in parents of adolescent boys. This information is critical to the development of approaches to optimise HPV vaccine uptake among this population group. METHODS: We performed a systematic search of the literature in addressing factors influencing parental attitudes to and beliefs about HPV vaccine and its acceptability for use. The findings were organised within the framework of the Health Belief Model (HBM) and summarised using a semi quantitative method...
December 5, 2016: Preventive Medicine
https://www.readbyqxmd.com/read/27931930/urban-dogs-in-rural-areas-human-mediated-movement-defines-dog-populations-in-southern-chile
#4
Federico J Villatoro, Maximiliano A Sepúlveda, Paulina Stowhas, Eduardo A Silva-Rodríguez
Management strategies for dog populations and their diseases include reproductive control, euthanasia and vaccination, among others. However, the effectiveness of these strategies can be severely affected by human-mediated dog movement. If immigration is important, then the location of origin of dogs imported by humans will be fundamental to define the spatial scales over which population management and research should apply. In this context, the main objective of our study was to determine the spatial extent of dog demographic processes in rural areas and the proportion of dogs that could be labeled as immigrants at multiple spatial scales...
December 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27930550/role-of-immune-cells-in-pancreatic-cancer-from-bench-to-clinical-application-an-updated-review
#5
Jae Hyuck Chang, Yongjian Jiang, Venu G Pillarisetty
BACKGROUND: Pancreatic cancer (PC) remains difficult to treat, despite the recent advances in various anticancer therapies. Immuno-inflammatory response is considered to be a major risk factor for the development of PC in addition to a combination of genetic background and environmental factors. Although patients with PC exhibit evidence of systemic immune dysfunction, the PC microenvironment is replete with immune cells. METHODS: We searched PubMed for all relevant English language articles published up to March 2016...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27928009/influence-of-plasma-cell-niche-factors-on-the-recruitment-and-maintenance-of-irf4hi-plasma-cells-and-plasmablasts-in-vaccinated-siv-infected-rhesus-macaques-with-low-and-high-viremia
#6
Julia M Shaw, Leia K Miller-Novak, Venkatramanan Mohanram, Katherine McKinnon, Thorsten Demberg, Diego A Vargas-Inchaustegui, David Venzon, Marjorie Robert-Guroff
: In a recent study, we found protection following SIV exposure correlated with rectal plasma cell frequency in vaccinated female rhesus macaques. We sought to determine if these same macaques maintained high mucosal plasma cell frequencies post-infection and if this translated to reduced viremia. Although delayed SIV acquisition did not predict subsequent viral control, alterations existed in the distribution of plasma cells and plasmablasts between macaques that exhibited high or low viremia...
December 7, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27920172/how-chikungunya-virus-virology-affects-its-epidemiology-and-transmission-implications-for-influencing-public-health
#7
Ann M Powers
Chikungunya virus has been causing a series of ongoing epidemics around the globe for the past 12 years. During that time, estimates indicate that >4 million cases occurred worldwide. Despite the magnitude of these outbreaks and the broad interest in understanding the virus and disease, significant gaps still exist in our knowledge base. An in-depth understanding of the basic virological elements that can affect the epidemiology of the agent is critical for future development of control and treatment products...
December 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27919239/psychosocial-determinants-of-parental-human-papillomavirus-hpv-vaccine-decision-making-for-sons-methodological-challenges-and-initial-results-of-a-pan-canadian-longitudinal-study
#8
Samara Perez, Ovidiu Tatar, Gilla K Shapiro, Eve Dubé, Gina Ogilvie, Juliet Guichon, Vladimir Gilca, Zeev Rosberger
BACKGROUND: HPV vaccination decision-making is a complex process that is influenced by multiple psychosocial determinants. Given the change in policy recommendation to include males in routine HPV vaccination, our goals were to assess the HPV vaccination uptake in Canada, to understand where Canadian parents were situated in the HPV vaccine decision-making process for their son, how they changed over time and which psychosocial determinants were relevant for this process. METHODS: We used an online survey methodology and collected data from a nationally representative sample of Canadian parents of boys aged 9-16 at baseline (T1, February 2014) and at 9 months' follow-up (T2)...
December 5, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27918260/factors-influencing-the-spread-of-pertussis-in-households-a-prospective-study-catalonia-and-navarre-spain-2012-to-2013
#9
Pere Godoy, Manuel García-Cenoz, Diana Toledo, Glòria Carmona, Joan A Caylà, Miquel Alsedà, Josep Àlvarez, Irene Barrabeig, Neus Camps, Pere Plans, María Company, Jesús Castilla, Maria-Rosa Sala-Farré, Carmen Muñoz-Almagro, Cristina Rius, Àngela Domínguez
We aimed to investigate transmission rates of pertussis in household contacts of cases and factors associated with transmission. A prospective epidemiological study was conducted in 2012 and 2013 to determine the incidence of pertussis among household contacts of reported cases in Catalonia and Navarre, Spain. An epidemiological survey was completed for each case and contact, who were followed for 28 days to determine the source of infection (primary case) and detect the occurrence of secondary cases. Odds ratios (ORs) were used to estimate the effectiveness of vaccination and chemoprophylaxis in preventing new cases, using the formula (1 - OR) × 100...
November 10, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/27917484/to-consent-or-decline-hpv-vaccination-a-pilot-study-at-the-start-of-the-national-school-based-vaccination-program-in-sweden
#10
Maria Grandahl, Tanja Tydén, Ragnar Westerling, Tryggve Nevéus, Andreas Rosenblad, Erik Hedin, Marie Oscarsson
BACKGROUND: Parents' beliefs about human papillomavirus (HPV) vaccination influence whether they allow their daughters to be vaccinated. We examined the association between parents' refusal and sociodemographic background, knowledge and beliefs about HPV, and the HPV vaccination in relation to the Health Belief Model. METHODS: The sample consisted of 200 (55%) parents of children aged 11-12 years in the Swedish national vaccination program. Data were collected using a self-reported questionnaire...
January 2017: Journal of School Health
https://www.readbyqxmd.com/read/27916412/kinetics-of-antibody-secreting-cell-and-fecal-iga-responses-after-oral-cholera-vaccination-in-different-age-groups-in-a-cholera-endemic-country
#11
Marjahan Akhtar, Firdausi Qadri, Taufiqur R Bhuiyan, Sarmin Akter, Tanzeem A Rafique, Arifuzzaman Khan, Laila N Islam, Amit Saha, Ann-Mari Svennerholm, Anna Lundgren
Immune responses to oral enteric vaccines in children and infants may be influenced by factors such as age, previous priming with related microorganisms and breast feeding. In this study, we aimed to determine optimal time points to assess immune responses to oral enteric vaccines in different clinical specimens. This was done by investigating antibody secreting cell (ASC) and fecal antibody responses on different days after vaccination using the licensed oral cholera vaccine Dukoral, containing cholera toxin B-subunit (rCTB) and inactivated Vibrio cholerae bacteria, as a model vaccine...
December 1, 2016: Vaccine
https://www.readbyqxmd.com/read/27914741/maternal-bcg-scar-is-associated-with-increased-infant-proinflammatory-immune-responses
#12
Patrice Akusa Mawa, Emily L Webb, Abdelali Filali-Mouhim, Gyaviira Nkurunungi, Rafick-Pierre Sekaly, Swaib Abubaker Lule, Sarah Prentice, Stephen Nash, Hazel M Dockrell, Alison M Elliott, Stephen Cose
INTRODUCTION: Prenatal exposures such as infections and immunisation may influence infant responses. We had an opportunity to undertake an analysis of innate responses in infants within the context of a study investigating the effects of maternal mycobacterial exposures and infection on BCG vaccine-induced responses in Ugandan infants. MATERIAL AND METHODS: Maternal and cord blood samples from 29 mother-infant pairs were stimulated with innate stimuli for 24h and cytokines and chemokines in supernatants were measured using the Luminex® assay...
November 30, 2016: Vaccine
https://www.readbyqxmd.com/read/27914142/attitudes-regarding-hpv-vaccinations-of-children-among-mothers-with-adolescent-daughters-in-korea
#13
Kyong No Lee, Kylie Hae Jin Chang, Seong Sik Cho, Sung Ho Park, Sung Taek Park
The aim of this study, carried out before the beginning of human papillomavirus (HPV) vaccinations as a National Immunization Program (NIP) in Korea in 2016, is to assess the ranges of perceptions and personal experience and their influences on attitudes regarding HPV vaccinations of children, among mothers of adolescent (9-14 years of age) daughters in Korea. From November 2015 to February 2016, we distributed a written questionnaire to mothers who had daughters aged 9-14 years. The questionnaire consisted of several questions, related to knowledge of HPV, personal experiences of HPV vaccination, and attitudes toward HPV vaccinations of their adolescent daughters...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27913692/factors-motivating-hpv-vaccine-uptake-among-vaccinated-and-nonvaccinated-hispanic-young-adult-women
#14
Dionne P Stephens, Hod Tamir, Tami L Thomas
INTRODUCTION: To identify factors influencing human papillomavirus (HPV) vaccination up taking decision making among vaccinated and nonvaccinated Hispanic college women. PARTICIPANTS: Hispanic young women between the ages of 18 and 24 years (N = 49). In total, 26 had not received the HPV vaccine, and 23 had started/completed the vaccine series. METHOD: Participants registered for the study via a psychology research pool at a large public university in the southeast United States after institutional review board approval...
December 2016: Hispanic Health Care International: the Official Journal of the National Association of Hispanic Nurses
https://www.readbyqxmd.com/read/27913644/the-impact-of-established-immunoregulatory-networks-on-vaccine-efficacy-and-the-development-of-immunity-to-malaria
#15
REVIEW
Marcela Montes de Oca, Michael F Good, James S McCarthy, Christian R Engwerda
The development of vaccines to protect against parasites is difficult, in large part due to complex host-parasite interactions that have evolved over millennia. Parasitic factors such as antigenic variation and host factors such as age, transmission intensity, and genetic influences are all thought to contribute to the limited efficacy of parasite vaccines. A developing theme in field studies investigating antiparasitic immunity is the emergence, establishment, and maintenance of immunoregulatory networks that shape the immune responses to new infections, as well as vaccines, thereby influencing disease outcome...
December 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27913239/strategy-for-assessment-of-the-colloidal-and-biological-stability-of-h1n1-influenza-a-viruses
#16
Frank Hämmerling, Oliver Lorenz-Cristea, Pascal Baumann, Jürgen Hubbuch
Current influenza vaccines are mostly formulated as liquids which requires a continuous cold chain to maintain the stability of the antigen. For development of vaccines with an increased stability at ambient temperatures, manifold parameters and their influences on the colloidal stability and activity of the antigen have to be understood. This work presents a strategy to examine both, the colloidal stability and the remaining biological activity of H1N1 influenza viruses under various conditions after an incubation of 40 days...
November 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27909947/vaccine-rejecting-parents-engagement-with-expert-systems-that-inform-vaccination-programs
#17
Katie Attwell, Julie Leask, Samantha B Meyer, Philippa Rokkas, Paul Ward
In attempting to provide protection to individuals and communities, childhood immunization has benefits that far outweigh disease risks. However, some parents decide not to immunize their children with some or all vaccines for reasons including lack of trust in governments, health professionals, and vaccine manufacturers. This article employs a theoretical analysis of trust and distrust to explore how twenty-seven parents with a history of vaccine rejection in two Australian cities view the expert systems central to vaccination policy and practice...
December 1, 2016: Journal of Bioethical Inquiry
https://www.readbyqxmd.com/read/27908832/evaluation-of-two-strains-of-marek-s-disease-virus-serotype-1-for-the-development-of-recombinant-vaccines-against-very-virulent-infectious-bursal-disease-virus
#18
Kai Li, Yongzhen Liu, Changjun Liu, Li Gao, Yulong Gao, Yanping Zhang, Hongyu Cui, Xiaole Qi, Li Zhong, Xiaomei Wang
Attenuated strains of Marek's disease virus serotype 1 (MDV1), and the closely related herpesvirus of turkeys, are among the most potent vectors for development of recombinant vaccines for poultry. To investigate the effects of MDV1 strain characteristics on the protective efficacy of the recombinant vaccines, we developed two recombinant MDV1 vaccines for expressing the VP2 gene of infectious bursal disease virus (IBDV) based on two different MDV1 strains, the attenuated strain 814 and the Meq gene-deleted recombinant MDV1 strain rLMS△Meq, as the viral vectors...
November 28, 2016: Antiviral Research
https://www.readbyqxmd.com/read/27908746/willingness-to-pay-for-a-dengue-vaccine-and-its-associated-determinants-in-indonesia-a-community-based-cross-sectional-survey-in-aceh
#19
Harapan Harapan, Samsul Anwar, Aslam Bustamam, Arsil Radiansyah, Pradiba Angraini, Riny Fasli, Salwiyadi Salwiyadi, Reza Akbar Bastian, Ade Oktiviyari, Imaduddin Akmal, Muhammad Iqbalamin, Jamalul Adil, Fenni Henrizal, Darmayanti Darmayanti, Mahmuda Mahmuda, Mudatsir Mudatsir, Allison Imrie, R Tedjo Sasmono, Ulrich Kuch, Ziv Shkedy, Setia Pramana
Vaccination strategies are being considered as a part of dengue prevention programs in endemic countries. To accelerate the introduction of dengue vaccine into the public sector program and private markets, understanding the private economic benefits of a dengue vaccine is therefore essential. The aim of this study was to assess the willingness to pay (WTP) for a dengue vaccine among community members in Indonesia and its associated explanatory variables. A community-based, cross-sectional survey was conducted in nine regencies of Aceh province, Indonesia, from November 2014 to March 2015...
November 28, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27907171/correction-beyond-rational-decision-making-modelling-the-influence-of-cognitive-biases-on-the-dynamics-of-vaccination-coverage
#20
Marina Voinson, Sylvain Billiard, Alexandra Alvergne
[This corrects the article DOI: 10.1371/journal.pone.0142990.].
2016: PloS One
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