[Specific antitubercular immunity in patients with tuberculosis and other pulmonary abnormality: diagnostic value of its study].

A hundred and seventy one patients with revealed rounded lung formations of tuberculous and non-tuberculous origins were examined. Mycobacterial antigens, cellular antituberculosis immunity, and antituberculosis antigens were determined. Cellular sensitization to mycobacterial antigens was found to develop in about 50% of patients with round lung formations of tuberculous origin.

[Tuberculin-provocation immunological tests in the diagnosis of pulmonary tuberculosis].

Prior to and after administration of subcutaneous tuberculin (50 TU) 50 tuberculous and 84 patients with pulmonary tumors, pneumonia, cysts, echinococcosis were examined for immunologically active proteins (IgG, IgA, C3c) and individual serum proteins (alpha2-macroglobulin, alpha1-antitripsin, fibrinogen, acid alpha-glycoprotein). Blast-transformation and migration inhibition on PPI reactions were also conducted. It was established that the above tuberculin-provocative tests may be employed with different efficacy in different clinical situations.

[Study of the structure-activity organization of the variola virus genome. II. Analysis of the nucleotide sequence of the HindIII region (C,E,R,Q,K and H)-DNA fragments of the India-1967 strain].

Sequencing of variola virus (VAR) genome region of 43069 bp was carried out. This area contains 42 potential genes. Computer analysis of proteins coding for these viral genes was done.

[Cloning the gene for vaccinia virus strain L-IVP growth factor in Escherichia coli].

The growth factor gene of the vaccinia virus LIVP strain has been primarily cloned in a 4.3 kbp long BamHI-EcoRI fragment and then subcloned in a 440 bp fragment. It was shown that clone 4 of the LIVP strain contains a single copy of this gene while the WR strain contains a repeat.