نتایج جستجو برای: tb vaccine

تعداد نتایج: 133682  

2011
Helen McShane

Tuberculosis (TB) disease caused by Mycobacterium tuberculosis (M. tb) remains one of the leading infectious causes of death and disease throughout the world. The only licensed vaccine, Mycobacterium bovis bacille Calmette-Guérin (BCG) confers highly variable protection against pulmonary disease. An effective vaccination regimen would be the most efficient way to control the epidemic. However, ...

2014
Liezl Channing Edina Sinanovic

BACKGROUND Tuberculosis remains the leading cause of death in South Africa. A number of potential new TB vaccine candidates have been identified and are currently in clinical trials. One such candidate is MVA85A. This study aimed to estimate the cost-effectiveness of adding the MVA85A vaccine as a booster to the BCG vaccine in children from the perspective of the South African government. MET...

Journal: :Vaccine 2017
Mushtaq Ahmed Douglas M Smith Tarek Hamouda Javier Rangel-Moreno Ali Fattom Shabaana A Khader

Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb) is contracted via aerosol infection, typically affecting the lungs. Mycobacterium bovis bacillus Calmette-Guerin (BCG) is the only licensed vaccine and has variable efficacy in protecting against pulmonary TB. Additionally, chemotherapy is associated with low compliance contributing to development of multidrug-resistant (MDR) and ext...

2017
Ana Balseiro Raúl Altuzarra Enric Vidal Xavier Moll Yvonne Espada Iker A Sevilla Mariano Domingo Joseba M Garrido Ramón A Juste Miguel Prieto Bernat Pérez de Val

BACKGROUND/AIMS Animal tuberculosis (TB) is a complex animal health problem that causes disruption to trade and significant economic losses. TB involves a multi-host system where sheep, traditionally considered a rare host of this infection, have been recently included. The aims of this study were to develop an experimental TB infection model in sheep with a Mycobacterium caprae field strain is...

2011
Chia-Lin Tseng Olivia Oxlade Dick Menzies Anne Aspler Kevin Schwartzman

BACKGROUND The development of a successful new tuberculosis (TB) vaccine would circumvent many limitations of current diagnostic and treatment practices. However, vaccine development is complex and costly. We aimed to assess the potential cost effectiveness of novel vaccines for TB control in a sub-Saharan African country--Zambia--relative to the existing strategy of directly observed treatment...

2011
Joseph Hinchey Bo Y. Jeon Holly Alley Bing Chen Michael Goldberg Steven Derrick Sheldon Morris William R. Jacobs Steven A. Porcelli Sunhee Lee

Tuberculosis (TB) caused by Mycobacterium tuberculosis remains a major global health problem, despite the widespread use of the M. bovis Bacille Calmette-Guerin (BCG) vaccine and the availability of drug therapies. In recent years, the high incidence of coinfection of M. tuberculosis and HIV, as well as escalating problems associated with drug resistance, has raised ominous concerns with regard...

Objective(s): Mycobacterium tuberculosis (M. tuberculosis), an intracellular pathogen, causes 1.5 million deaths globally. Bacilli Calmette-Guérin (BCG) is commonly administered to protect people against M. tuberculosis infection; however, there are some obstacles with this first-generation vaccine. DNA vaccines, the third generation vaccines, can induce cellular immun...

Journal: :Applied Sciences 2020

2016
Graham Nugent Ivor J. Yockney E. Jackie Whitford Martin L. Cross Frank E. Aldwell Bryce M. Buddle

Oral-delivery Mycobacterium bovis bacillus Calmette-Guérin (BCG) vaccine in a lipid matrix has been shown to confer protection against M. bovis infection and reduce the severity of tuberculosis (TB) when fed to brushtail possums (Trichosurus vulpecula), the major wildlife vector of bovine TB in New Zealand. Here we demonstrate the feasibility of aerial delivery of this live vaccine in bait form...

Journal: :Tuberculosis 2007
Yuri L Dorokhov Anna A Sheveleva Olga Y Frolova Tatjana V Komarova Anna S Zvereva Peter A Ivanov Joseph G Atabekov

Recent developments in genetic engineering allow the employment of plants as factories for 1/foreign protein production. Thus, tuberculosis (TB) ESAT6 antigen was expressed in different plant systems, but the level of vaccine protein accumulation was extremely low. We describe the technology for superexpression of TB vaccine proteins (Ag85B, ESAT6, and ESAT6:Ag85B fusion) in plant leaves which ...

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