mantoux test using 2 iu of tuberculin prepared in iran was performed on 6675 healthy persons randomly selected from an urban population (shiraz) of iran. in 3776 persons with no evidence of previous bcg vaccination the rate of positive reaction was less than 2% up to the age of 14, slightly more than 2% among those 15-19 years of age, but strikingly higher (45.5%) in older age groups (p<0.001)....

Background: The tuberculin test is widely used to identify tuberculosis infection. Some individuals infected with Mycobacterium tuberculosis may have an initial negative skin test reaction to tuberculin. The two step purified protein derivative skin test can decrease misinterpretation of tuberculin test .This study was aimed at comparing the two- step tuberculin skin test and booster phenomenon...

background: the tuberculin test is widely used to identify tuberculosis infection. some individuals infected with mycobacterium tuberculosis may have an initial negative skin test reaction to tuberculin. the two step purified protein derivative skin test can decrease misinterpretation of tuberculin test .this study was aimed at comparing the two- step tuberculin skin test and booster phenomenon...

background with respect to the prevalence of tuberculosis in our country, bcg vaccination at birth seems to be an effective means of prevention. the present study was designed to evaluate the efficiency of bcg vaccination and factors influencing the tuberculin skin reaction. materials and methods the inoculum of live bcg organisms in vaccinated infants was evaluated at birth and the correlation...

introduction :  working in hospital as a health care worker (hcw) predisposes the staffs to the risk of tuberculosis infection (tb). majority of hospitals around the world have developed protocols to prevent their personnel against tb. this study was carried out to determine the status of tb prevalence in the hcws using tuberculin skin test to establish an occupational health protection against...

BACKGROUND The prevalence rates of asthma and other atopic disorders have increased steadily in many developed countries over the past few decades. Recent epidemiological and animal studies have suggested that BCG vaccination might be beneficial in reducing the subsequent development of atopy. This study investigates the relationship between asthma, allergic symptoms, atopy, and tuberculin resp...

17 18 The prevalence of mycobacterial infection among lactating Fulani cows was investigated in 19 the Federal Capital Territory (FCT), Abuja and Kaduna State of Nigeria. Tuberculin testing 20 using single comparative intradermal tuberculin test (SCITT) showed a 14.6% positive, 4% 21 doubtful and 81.4% negative reactors. Mycobacterial infection was found to be present in the 22 nomadic (constan...

1Department of Internal Medicine; 2Department of Family Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia. Received: 25/10/01; accepted: 14/02/02 ABSTRACT Tuberculosis is both a nosocomial and an occupational infection. The prevalence of positive tuberculin skin reactions at King Abdulaziz University Hospital, Saudi Arabia, was investigated by testing 298 health care workers. C...