[Investigations for improving the microscopic detection of mycobacteria following rapid cultivation by means of a rotating incubator. I. Improvement of the fixation technique (author's transl)].

The optimal qualitative and quantitative identification by microscopy of mycobacteria cultivated in liquid medium in including several problems. Acridine-orange was used for staining in all investigations. Polyvinyl-alcohol (1--2.

[Experimental findings after application of Kveim antigen. III. Sensitization of mice with living and killed strains of Mycobacterium avium (author's transl)].

Mice were infected with Mycobacterium avium (serotype I and serotype II). The application of kveim antigen or two kinds of lipid fractions of Mycobacterium avium (serotype I or II) is followed in all cases by typical tissue reactions resembling positive kveim tests. Control animals which only received kveim antigen or lipid fractions of mycobacterium I showed in all cases negative kveim reactions.

[The use of mycobacteria in the estimation of the concentration of antibiotics, antimycotics and antituberculotics (author's transl)].

The possibility of using the rapid resistance test to determine the levels of antibiotic, antimycotic and antituberculotic drugs is systematically investigated. As a rule the incubation time reduced to seven days for tubercel bacilli results in a lower inhibitor concentration (MIC) than with other microbiological methods used in tuberculosis diagnostics due to a lower inactivation of the drugs. The MIC of antibiotics and antituberculotics is found between 0.