results almost 8% of the personnel showed positive tst (over 10 mm) reaction while 29% of them had considerable t - cell reactivity against ppd in elispot assays. however, the esat - 6 reactivity was found only in one case of hcws. no correlation was found between the patterns of the reactions and the age or the duration of the employment or previous vaccination history of the participants. the...

THE CONCLUSIONS TO BE DEDUCED FROM THIS BRIEF SERIES OF EXPERIMENTS ARE AS FOLLOWS: 1. The ophthalmo-tuberculin reaction is of some value for diagnosis of tuberculosis in cattle. A characteristic conjunctivitis with fibrinous exudation coming on from six to eight hours, reaching a maximum in from sixteen to twenty-four hours and disappearing in forty-eight hours, is noted in tubercular animals....

Tuberculosis has long been, and still remains, an important if subsidiary complication of leprosy in this institution. Beginning in 1947-1948 (1), and continued more recently, the inmate population was subjected to tuberculin testing. Having received an inquiry about the results of that work (3), I present the findings here in summary form. The reports from this hospital show that such an inves...

Since it was first introduced in the late 1800s, the tuberculin test has undergone continual refinement in its formulation, standardization, and dosage, as well as its interpretation and indications for use. New guidelines have replaced universal screening with targeted testing and rigid definitions of positivity with individualized criteria formulated from a Bayesian approach. This review summ...

The tuberculin skin test is commonly used in tuberculosis (TB) eradication programmes in cattle (Monaghan et al., 1994). The detection of false-positive reactors is important particularly in areas where there is a relatively low incidence of the disease, and can be attributed, at least in part, to immunological cross-reactivity with other mycobacteria infections. Of particular concern is Mycoba...

Background As healthcare workers (HCWs), medical trainees are at a high-risk for acquisition of tuberculosis (TB) infection and disease. To our knowledge, there are no published data about TB infection among medical trainees in Tunisia.To determine the tuberculin skin test (TST) positivity and tuberculin conversion among a group of medical trainees in different departments at our institution. ...

To evaluate the effect of BCG vaccination and T lymphocyte subpopulations on the reactivity to the tuberculin skin test, 113 asymptomatic HIV+ individuals were tuberculin tested by intradermal injection of 5TU of purified protein derivative and the levels of circulating lymphocyte (CD3, CD4 and CD8) subpopulations determined by indirect immunofluorescence. Ninety-two percent of the subjects inc...

Bovine tuberculosis (BTB) is endemic in African buffaloes (Syncerus caffer) in some National Parks in Southern Africa, whilst no studies have been conducted on BTB on buffalo populations in Zambia. The increased demand for ecotourism and conservation of the African buffalo on private owned game ranches has prompted the Zambian Wildlife Authority (ZAWA) and private sector in Zambia to generate a...

Bovine tuberculosis is an endemic disease in Egypt, a notable gap exists between limited cases identified by single intradermal tuberculin test performed through the national control program and higher detected at abattoirs. Therefore, this study aimed to investigate epidemiological situation causes of previously mentioned Middle-Delta Region. A total 25 emergency-slaughtered animals unknown tu...