Vaccine-induced Immunity Circumvented by Typical Mycobacterium tuberculosis Beijing Strains

نویسندگان

  • Kristin Kremer
  • Marieke J. van der Werf
  • Betty K.Y. Au
  • Dang D. Anh
  • Kai M. Kam
  • H. Rogier van Doorn
  • Martien W. Borgdorff
  • Dick van Soolingen
چکیده

The frequency of typical and atypical Beijing strains of Mycobacterium tuberculosis was determined in the Netherlands; Vietnam; and Hong Kong Special Administrative Region, People's Republic of China. The strains' associations with drug resistance, M. bovis BCG vaccination, and patient characteristics were assessed. BCG vaccination may have positively selected the prevalent typical Beijing strains.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Protection and Long-Lived Immunity Induced by the ID93/GLA-SE Vaccine Candidate against a Clinical Mycobacterium tuberculosis Isolate.

Mycobacterium tuberculosis HN878 represents a virulent clinical strain from the W-Beijing family, which has been tested in small animal models in order to study its virulence and its induction of host immune responses following infection. This isolate causes death and extensive lung pathology in infected C57BL/6 mice, whereas lab-adapted strains, such as M. tuberculosis H37Rv, do not. The use o...

متن کامل

بررسی رابطه ژن‌های فسفولیپاز C با پاتوژنیسیته مایکوباکتریوم توبرکلوزیس سویه بیجینگ وسویه غیربیجینگ

Abstract Background: The Beijing strain of Mycobacterium tuberculosis is responsible for more than 25% of cases of Tuberculosis in the world, it has a high transmission potential and there is a significant correlation between Beijing strain and multidrug resistance. In this study we compared the presence of Phospholipase C genes in Beijing and Nonbeijing strains of Mycobacterium tuberculosis...

متن کامل

Attenuated Mycobacterium tuberculosis SO2 Vaccine Candidate Is Unable to Induce Cell Death

It has been proposed that Mycobacterium tuberculosis virulent strains inhibit apoptosis and trigger cell death by necrosis of host macrophages to evade innate immunity, while non-virulent strains induce typical apoptosis activating a protective host response. As part of the characterization of a novel tuberculosis vaccine candidate, the M. tuberculosis phoP mutant SO2, we sought to evaluate its...

متن کامل

بررسی میزان وفور ژنوتیپ بیجینگ در سویه‌های مایکوباکتریوم توبرکلوزیس جدا شده از بیماران مسلولThe Frequency of Beijing Genotype of Mycobacterium Tuberculosis Isolated from Tuberculosis Patients

    Background & Aim: Molecular epidemiology is the using of molecular techniques (e.g. Spoligotyping, RFLP VNTR) in order to study bacterial distribution in human populations. The aim of this study was to investigate the prevalence of all genotypes in M. tuberculosis strains typed by spoligotyping and to determine the associated risk factors in patients with different nationalities residing in...

متن کامل

Patients with active tuberculosis often have different strains in the same sputum specimen.

It is generally accepted that tuberculosis results from a single infection with a single Mycobacterium tuberculosis strain. Such infections are thought to confer protective immunity against exogenous reinfection. In this study, a novel polymerase chain reaction method was developed to specifically identify M. tuberculosis strains belonging to the Beijing and non-Beijing evolutionary lineages in...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Emerging Infectious Diseases

دوره 15  شماره 

صفحات  -

تاریخ انتشار 2009