[Effect of some antibiotics and chemotherapeutic preparations on Leptospira in vitro].

It was shown in vitro with the method of successive serial dilutions that polymyxin M, thilan, streptomycin, neomycin, sodium levomycetin succinate, brilliant green, tripaphlavin, azidin, aminoacrichin, and novarsenol had the most pronounced bactericidal effect on Leptospira. Combination of the antibiotics or the chemotherapeutics apart from azidin and tripaphlavin did not increase the bactericidal effect as compared to their use alone. The clinical and collection strains of Leptospira had the same sensitivity to the substances tested. The above drugs should be tested on animals with leptospirosis.