نتایج جستجو برای: prevalence of tuberculin positive
تعداد نتایج: 21201682 فیلتر نتایج به سال:
Introduction & Objective: The World Health Organization estimates that 1.3 million Tubercu-losis cases occur in children each year. Due to the lack of sputum examination in children, the diagnosis of pediatric tuberculosis is based on three criteria close contact history, chest x ray finding and positive tuberculin skin test..On the other hand, BCG vaccine that in our na-tional immunization s...
Holstein Friesian cows and their crossbred progeny on a farm in northern India were tested for tuberculosis (TB) infection using a single intradermal tuberculin test. The results showed that the animals persistently harboured TB infection for periods of two to four years. The recent comparative intradermal tuberculin test revealed that at least five out of nine of these cattle reacted positivel...
بررسی رابطه بین یادگیری سازمانی و توانمندسازی مدیران و معاونین مدارس شهرستان میانه دکتر محمد اورکی1، دکتر هاشم نعمتی، گلسیما عزیزی* استادیار گروه علوم تربیتی ، دانشگاه پیام نور تهران جنوب استادیار گروه علوم تربیتی. ، دانشگاه پیام نور مشهد دانشجوی کارشناسی ارشد مدیریت آموزشی ، دانشگاه پیام نور تهران جنوب [email protected] میانه- دانشگاه پیام نور میانه مدیر آموزشی، 2226062 – 0423، ت...
BACKGROUND Nosocomial transmission of tuberculosis remains an important public health problem. We created an in vivo air sampling model to study airborne transmission of tuberculosis from patients coinfected with human immunodeficiency virus (HIV) and to evaluate environmental control measures. METHODS An animal facility was built above a mechanically ventilated HIV-tuberculosis ward in Lima,...
background: the risk of developing tuberculosis is high among chronic hemodialysis patients. the tuberculin skin test (tst) has been in use for diagnosing latent tb, but few data are available on tst in hemodialysis patients. objective: this study was done to identify the tst reactivity and frequency of booster effect in serial tst among hemodialysis patients. methods: a total of 100 patients i...
results tst was positive in 198 (60.4%) health care workers out of 328. likelihood of positive tst among hcws increased in nurses (or = 4.617, 95% ci = 1.181-18.054, p = 0.028), increasing working experience (or = 1.178, 95% ci = 1.131 - 1.226, p < 0.001), and history of exposure to patients with tb (or = 9.035, 95% ci = 4.018 - 20.315, p < 0.001). age, gender and bcg vaccination scar were not ...
Abstract Background Bovine tuberculosis (bTB), is a worldwide disease caused by Mycobacterium bovis ( M. ). The success of bTB eradication and control programs based on early detection the removal reactors from herd thus routine testing cull strategy have been applied globally. Since late nineteenth century, Tuberculin Skin Test (TST) has primary antemortem test available to support campaigns. ...
The mycolyl transferase antigen 85 complex is a major secreted protein family from mycobacterial culture filtrate, demonstrating powerful T cell stimulatory properties in most HIV-negative, tuberculin-positive volunteers with latent M.tuberculosis infection and only weak responses in HIV-negative tuberculosis patients. Here, we have analyzed T cell reactivity against PPD and Ag85 in HIV-infecte...
In response to a difference in pricing, the San Diego Veterans Administration Medical Center changed its tuberculin preparation from Tubersol to Aplisol in the fall of 2006. Following the change, an increased number of employee skin test conversions was noted. Employee tuberculin skin test converters from 2006 were screened with the QuantiFERON Gold (QFT-G) gamma interferon release assay. Those...
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