AIM The aim of this study is to interpret purified protein derivative (PPD) induration sizes with respect to the number of Bacillus Calmette-Guérin (BCG) scars. METHODS We have considered 1879 school children between the ages of 7 and 14 years from seven primary schools in Kocaeli, Turkey. Children were injected with 5TU 0.1 mL PPD and induration sizes were measured at 72 h. Number of BCG sca...

The predictive value of induration 24 hours after administration of purified protein derivative (PPD) was examined. Altogether 1082 healthy schoolchildren were tested using 5 tuberculin units of PPD. Induration was measured at 24, 48, and 72 hours. At 24 hours, induration of any size had a relatively low positive predictive value (63%), although indurations > 5 mm had a higher (86%) positive pr...

[1] We investigate the relevance of induration as an explanation for the occurrence of dunes of unusual morphology in the Martian north polar region. The evidence for induration of aeolian deposits on Mars is reviewed. An explanation for rounded, elongated barchans in Chasma Boreale is presented. The role played by induration in the formation of linear dunes is discussed. Our arguments are supp...

Background: Cell-mediated immunity (CMI) plays an important role in resistance against leishmaniasis. Leishmanin test (Montenegro skin test) is a method in evaluation of immune system reaction against cutaneous leishmaniasis. The TDR/WHO reference Leishmanin produced by the Pasteur Institute of Iran is used worldwide. Two other antigens produced by Razi Serum Institute of Iran, Killed Leishmani...