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https://www.readbyqxmd.com/read/28102654/tuberculosis-and-tuberculin-skin-test-reactivity-in-pediatric-patients-with-celiac-disease
#1
Nafiye Urganci, Derya Kalyoncu
BACKGROUND: The aim of the study was to determine tuberculin skin test reactivity and associated factors in pediatric patients with celiac disease (CD). METHODS: Tuberculin skin test (TST) was performed on 28 patients with CD aged from 1 year to 15 years (mean, 6.64±4.8) and 28 healthy age and sex-matched children. The association between TST reactivity and parameters such as age, gender, malnutrition, clinical presentation, compliance to gluten free diet and response to hepatitis A and B vaccinations were determined...
February 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28101015/m2-polarized-macrophages-compose-lupus-vulgaris-arising-from-a-bacillus-calmette-gu%C3%A3-rin-vaccination-site
#2
Yota Sato, Taku Fujimura, Sadanori Furudate, Aya Kakizaki, Osamu Iizawa, Setsuya Aiba
Since bacillus Calmette-Guérin (BCG) is an attenuated strain of Mycobacterium bovis, lupus vulgaris (LV) is reported as one of the rare complications after BCG vaccination, correlating with immunosuppression in the lesional skin. In this report, we describe a case of LV arising from the BCG vaccination site 22 years after vaccination. Interestingly, in the present case, granuloma cells were composed of M2-polarized macrophages. Our case might explain the contribution of M2-polarized macrophages to the biology of LV arising from a BCG vaccination site...
May 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28092959/mixed-vaccination-strategy-for-the-control-of-tuberculosis-a-case-study-in-china
#3
Siyu Liu, Yong Li, Yingjie Bi, Qingdao Huang
This study first presents a mathematical model of TB transmission considering BCG vaccination compartment to investigate the transmission dynamics nowadays. Based on data reported by the National Bureau of Statistics of China, the basic reproduction number is estimated approximately as R0=1.1892. To reach the new End TB goal raised by WHO in 2015, considering the health system in China, we design a mixed vaccination strategy. Theoretical analysis indicates that the infectious population asymptotically tends to zero with the new vaccination strategy which is the combination of constant vaccination and pulse vaccination...
June 1, 2017: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/28087924/clinical-testing-of-tuberculosis-vaccine-candidates
#4
Mark Hatherill, Dereck Tait, Helen McShane
It is almost 100 years since the development of bacille Calmette-Guérin (BCG), the only licensed vaccine against tuberculosis (TB). While BCG does confer consistent protection against disseminated disease, there is an urgent need for a more effective vaccine against pulmonary disease. There are several indications for such an improved vaccine, including prevention of infection, prevention of disease, and a therapeutic vaccine to prevent recurrent disease. The two main approaches to TB vaccine development are developing an improved whole mycobacterial priming agent to replace BCG and/or developing a subunit booster vaccine to be administered after a BCG or BCG replacement priming vaccination...
October 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087528/engineering-mycobacteria-for-the-production-of-self-assembling-biopolyesters-displaying-mycobacterial-antigens-for-use-as-tuberculosis-vaccine
#5
Jason W Lee, Natalie A Parlane, Bernd H A Rehm, Bryce M Buddle, Axel Heiser
: Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis or Mycobacterium bovis and still remains one of the world's biggest global health burdens. Recently, engineered polyhydroxyalkanoate (PHA) biobeads produced in both E. coli and Lactococcus lactis displaying mycobacterial antigens were found to induce significant cell mediated immune responses in mice. We observed that such PHA beads contained host cell proteins as impurities which we hypothesized to have the potential to induce immunity...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28087302/the-long-term-effect-of-bacille-calmette-gu%C3%A3-rin-vaccination-on-tuberculin-skin-testing-a-55-year-follow-up-study
#6
James D Mancuso, Rupal M Mody, Cara H Olsen, Lee H Harrison, Mathuram Santosham, Naomi E Aronson
BACKGROUND: Bacille Calmette-Guérin vaccination (BCG) is known to cause false positive tuberculin skin test (TST) results from cross-reactions to mycobacterial antigens. However, the duration of BCG influence on the TST is poorly characterized. The objective of the study was to assess the long-term effect of BCG vaccination on TST reactivity. METHODS: Data on TST reactivity were prospectively collected during 1935-47 as part of a clinical trial among American Indians / Alaskan Natives and retrospectively thereafter between 1948 and 1998...
January 10, 2017: Chest
https://www.readbyqxmd.com/read/28077441/predicting-ifn-%C3%AE-responses-after-bcg-vaccination-in-humans-from-macaques-a-proof-of-concept-study-of-immunostimulation-immunodynamic-modelling-methods
#7
Sophie J Rhodes, Charlotte Sarfas, Gwenan M Knight, Andrew White, Ansar A Pathan, Helen McShane, Thomas G Evans, Helen Fletcher, Sally Sharpe, Richard G White
INTRODUCTION: Macaques play a central role in human tuberculosis(TB) vaccine development. Immune and challenge responses differ across macaque and human subpopulations. We determined which macaque subpopulations best predicted immune responses in different human subpopulations, using novel immunostimulation/immunodynamic modelling methods in a proof of concept study. METHODS: Data on IFN-γ secreting CD4+ T cells over time after recent BCG vaccination were available for 55 humans and 81 macaques...
January 11, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28077246/testing-of-a-palatable-bait-and-compatible-vaccine-carrier-for-the-oral-vaccination-of-european-badgers-meles-meles-against-tuberculosis
#8
Sonya Gowtage, Gareth A Williams, Ray Henderson, Paul Aylett, Duncan MacMorran, Si Palmer, Andy Robertson, Sandrine Lesellier, Stephen P Carter, Mark A Chambers
The oral vaccination of wild badgers (Meles meles) with live Bacillus Calmette-Guérin (BCG) is one of the tools being considered for the control of bovine tuberculosis (caused by Mycobacterium bovis) in the UK. The design of a product for oral vaccination requires that numerous, and often competing, conditions are met. These include the need for a highly palatable, but physically stable bait that will meet regulatory requirements, and one which is also compatible with the vaccine formulation; in this case live BCG...
January 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28074660/optimizing-the-management-of-children-with-latent-tuberculosis-infection
#9
E Venturini, C Tersigni, E Chiappini, M de Martino, L Galli
The management of latent tuberculosis (LTBI) in children represents an important issue for paediatricians because of the disease burden, the lack of a gold standard for the diagnosis and the high annual risk of progression to active disease. Areas covered: A review of English language articles on LTBI in children, published between the 1(st) of January 2010 and the 1(st) of July 2016, was conducted using multiple keywords and standardized terminology in PubMed database. This review provides an updated overview of the available tests for LTBI diagnosis in children, management strategies and treatment options...
January 11, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28072958/-investigation-on-immunization-program-coverage-rate-and-its-safety-in-children-with-tuberous-sclerosis
#10
Y Gao, L P Zou, M N Zhang, L Y Pang, Y Y Wang, S F Ma, L L Huang
Objective: To investigate the status of immunization of National Immunization Program (NIP) and its adverse reaction rate in children with tuberous sclerosis. Method: Questionnaire survey was adopted to identify the vaccination coverage and its adverse events; 72 cases of children with tuberous sclerosis and 78 normal controls (healthy children completing age-appropriate NIP) admitted to Chinese People's Liberation Army General Hospital from December 2014 to November 2015 were involved into this study. Result: The age-appropriate NIP coverage rate of tuberous sclerosis was 36%(26/72)...
January 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28065474/a-single-low-dose-of-a-cgmp-recombinant-bcg-vaccine-elicits-protective-t-cell-immunity-against-the-human-respiratory-syncytial-virus-infection-and-prevents-lung-pathology-in-mice
#11
Pablo F Céspedes, Emma Rey-Jurado, Janyra A Espinoza, Claudia A Rivera, Gisela Canedo-Marroquín, Susan M Bueno, Alexis M Kalergis
Human respiratory syncytial virus (hRSV) is a major health burden worldwide, causing the majority of hospitalizations in children under two years old due to bronchiolitis and pneumonia. HRSV causes year-to-year outbreaks of disease, which also affects the elderly and immunocompromised adults. Furthermore, both hRSV morbidity and epidemics are explained by a consistently high rate of re-infections that take place throughout the patient life. Although significant efforts have been invested worldwide, currently there are no licensed vaccines to prevent hRSV infection...
January 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28043633/development-of-escherichia-coli-and-mycobacterium-smegmatis-recombinants-expressing-major-mycobacterium-tuberculosis-specific-antigenic-proteins
#12
Hanady A Amoudy, Hussain A Safar, Abu S Mustafa
OBJECTIVE/BACKGROUND: Mycobacterium tuberculosis is an obligate pathogenic bacterial species in the family Mycobacteriaceae and the causative agent of most tuberculosis (TB) cases. Until today, the only approved TB vaccine is Bacille Calmette Guerin (BCG), which has been used since 1921. While BCG provides fairly effective protection for infants and young children, its efficacy in adults is variable around the world. This could be due to several parameters including strains of the vaccine and exposure of individuals to different environmental bacterial infections...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043615/what-can-we-learn-from-the-past-a-pediatrician-s-view
#13
Margareta Eriksson, Rutger Bennet
When the tuberculosis epidemic reached its peak in central Europe in the 1900s (not until the 2000s in sub-Saharan Africa), both contained and disseminated tuberculosis was mainly regarded as a childhood disease. From 1920, before the use of the Bacillus Calmette-Guérin (BCG) vaccine and the possibility of drug treatment, there was a drastic decline in the rate of tuberculosis incidence in the Western world. In 1970, the case rate had declined in Sweden from 500/100,000 individuals to 1/100,000 individuals...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043594/incidence-of-tuberculosis-among-children-living-in-contact-with-smear-positive-tuberculosis-advantages-and-limits-of-the-quantiferon-tb-gold-in-tube-test
#14
Djohar Hannoun, Fadila Boulahbal
OBJECTIVE/BACKGROUND: Children living in contact with smear-positive pulmonary tuberculosis (TB) patients are highly exposed to TB infection. Our objective was to estimate the incidence of TB in children living in contact with a Smear Positive (M+) pulmonary tuberculosis (PTM+) index case during 2years following exposure. METHODS: This was a descriptive, cohort, prospective, multicenter study of children aged from 6months to 15years in contact with a PTM+ case. The recruitment of children has been based on the diagnosed PTM+ index case and taken in charge by the Services of Control of Tuberculosis and Respiratory Diseases located in Algiers during 2014...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043588/characterization-of-the-cd4-and-cd8-t-cell-response-in-the-quantiferon-tb-gold-plus-kit
#15
Elisa Petruccioli, Teresa Chiacchio, Ilaria Pepponi, Valentina Vanini, Rocco Urso, Gilda Cuzzi, Lucia Barcellini, Fabrizio Palmieri, Daniela M Cirillo, Giuseppe Ippolito, Delia Goletti
OBJECTIVE/BACKGROUND: QuantiFERON-TB Gold In-Tube (QFT-GIT, Qiagen, Hilden, Germany) is an interferon-γ (IFN-γ) release assay designed to detect latent tuberculosis infection (LTBI). Although QFT-GIT has several advantages (mainly that it is not affected by the Bacille Calmette-Guérin vaccination), it has a poor sensitivity in immune-compromised individuals as it involves an immune response-based detection. Recently, QuantiFERON-TB Gold Plus (QFT-Plus) assay has been proposed as a new generation of QFT-GIT...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043528/childhood-tuberculosis-in-qatar
#16
Jay P N Singh, Reem Mohammed, Thanveer Thayyullathil, Abdullatif Al-Khal, Zubaida Al-Suwaidi
Childhood tuberculosis (TB) has been long neglected but has gained attention in recent years. In 2012, the World Health Organization annual report included an estimate for childhood TB for the first time, and in the following year, the TB Alliance received a grant from UNITAID (International Drug Purchase Facility) to develop pediatric TB formulations. Qatar is a low-incidence country. In this observational study, laboratory-confirmed cases of TB were analyzed from 2013 to 2015 and included patients aged ⩽14years...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043486/tuberculosis-in-children
#17
Ali Akbar Velayati
Tuberculosis (TB) is the main cause of infection-related death in the world. Children make up ∼5-15% of all TB cases. Severe forms of disease such as meningitis and disseminated form are more common in children. Due to current estimates of World Health Organization (WHO) in 2015, one million children suffer from TB around the world; of these, it is estimated that more than 136,000 die a year. One study estimated 67million children with latent TB which develops to active form with the rate of ∼850,000 each year...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043221/adverse-events-following-immunisation-with-bacille-calmette-gu%C3%A3-rin-vaccination-baseline-data-to-inform-monitoring-in-australia-following-introduction-of-new-unregistered-bcg-vaccine
#18
Alexandra J Hendry, Aditi Dey, Frank H Beard, Gulam Khandaker, Richard Hill, Kristine K Macartney
In recent years there has been a global shortage of bacille Calmette-Guérin (BCG) vaccine and, from September 2012, unregistered vaccines have needed to be used in Australia (a Danish product initially until the end of 2015, and a Polish product used in some jurisdictions from early 2016). We examined rates and types of adverse events following immunisation (AEFI) with BCG vaccine reported to the Therapeutic Goods Administration between 2009 and 2014 in children aged less than 7 years. Reporting rates of AEFI with BCG vaccine increased from 87 per 100,000 doses (registered Sanofi Pasteur product) in 2009 to 201 per 100,000 doses (unregistered Danish Statens Serum Institute product) in 2014, with Victoria having the highest rate each year...
December 24, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28026828/microevolution-of-bcg-substrains
#19
Katarzyna Krysztopa-Grzybowska, Anna Lutyńska
Tuberculosis was, and still is, one of the main causes of morbidity and mortality in the world. Thus it still remains a public health priority. Nonetheless, without a newly developed vaccine, it is rather unlikely to be easily resolved. The only available vaccine against tuberculosis (BCG) has been used for nearly 100 years. Currently a variety of BCG substrains are used by many manufacturers in the world. All these substrains were obtained from a single parental strain of Mycobacterium bovis. Attempts to explain the complete mechanisms of attenuation, as well as tracing the microevolution resulting from the different distribution time and conditions of production of BCG vaccines in the different parts of the world, might explain the differences in the observed efficacy of vaccines produced with different substrains...
December 21, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28013312/mycobacteria-manipulate-g-protein-coupled-receptors-to-increase-mucosal-rac1-expression-in-the-lungs
#20
Nader Alaridah, Nataliya Lutay, Erik Tenland, Anna Rönnholm, Oskar Hallgren, Manoj Puthia, Gunilla Westergren-Thorsson, Gabriela Godaly
Mycobacterium bovis bacille Calmette-Guérin (BCG) is currently the only approved vaccine against tuberculosis (TB). BCG mimics M. tuberculosis (Mtb) in its persistence in the body and is used as a benchmark to compare new vaccine candidates. BCG was originally designed for mucosal vaccination, but comprehensive knowledge about its interaction with epithelium is currently lacking. We used primary airway epithelial cells (AECs) and a murine model to investigate the initial events of mucosal BCG interactions...
December 24, 2016: Journal of Innate Immunity
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