At the same time, the differentiation between nonspecific tuberculin reactions and specific ones is understudied.Additional optimization approaches to improve test performance were examined and showed that the application of "a priori exclusions" of test results on the basis of reactivity to fortuitum PPD (sensitin produced from Mycobacterium fortuitum) and to a lesser degree, avian PPD, increased specificity without losing sensitivity (Michel et al., 2011).
Four cows that were left at the farmstead did not react to tuberculin during following planned examinations.Figure 7(a)shows the subcutaneous administration of sensitin with the BI-7M needle-free syringe.
Preliminary experiments on guinea pigs found that sensitins had biological and specific activity, identical to avian purified protein derivative tuberculin.
Marsh et al., "Skin testing with Mycobacterium avium sensitin
to identify infection with M.
Skin test reactions to Mycobacterium tuberculosis purified protein derivative and Mycobacterium avium sensitin
among health care workers and medical students in the United States.
Hemosensitive properties were evaluated in terms of sensitivity in IHT and sensitin consumption per unit of ready product with a single method of sensitization of erythrocytes.
After sensibilization, sensitin was fixed by 1% of formalin and incubated for 2 h at a temperature (4 [+ or -] 3)[degrees]C or 30 min at a temperature (45 [+ or -] 1)[degrees]C.
Correlation to water has previously only been incidental--indirectly implied by studies of sensitin reactivity in healthy populations (7,8) and by the isolation of M.
avium and other nontuberculous mycobacterial sensitins (7,8).
Sensitivity to PPD tuberculin and M scrofulaceum sensitin
in schoolchildren BCG vaccinated at birth.
Dual skin testing with Mycobacterium avium sensitin and purified protein derivative to discriminate pulmonary disease due to M.
Sensitivity to tuberculin and sensitins from atypical mycobacteria (M.