[Fishes from the Volga-Caspian basin - vectors of pathogens of anthropozoonoses].

In the Volga-Caspian region there is abundant variety of parasitic species from different systematic groups. Some species ofparasites can be pathogenic not only for fish, but also for human that is why studies on the infection rate of commercial fish species by agents of are very topical for today. The work presents materials on invasiveness by the sanitary-significant helminthes of sheat fish, pike-perch, perch, pike, bream, Caspian roach, red-eye, sabrefish, silver bream, anchovy and ordinary kilka, herring, Caspian shad, black-backed shad.

[Heterogeneity of Bacillus anthracis strains in terms of their adhesive capacity].

The homogeneity of colonies of two B. anthracis vaccine strains in R- and RS- forms (100 colonies of each strain) in terms of their adhesive capacity was studied. B.

[The effect of the in-vitro interaction of antibacterial preparations on Brucella melitensis].

The character of drug interaction in 18 various combinations of sisomicin, amikacin, gentamicin, cefotaxime, doxycycline, trimethoprim and nitroxaline was studied by the chess board method with respect to 25 strains of Brucella melitensis. The synergistic effect with respect to the majority of the cultures was observed with the use of the combinations of gentamicin, amikacin or sisomicin with doxycycline. The combinations of the aminoglycosides with cefotaxime and sisomicin or gentamicin with rifampicin had a summation effect on the majority of the cultures.

[Sensitivity of Brucella melitensis to various antibiotics, drug preparations and their combinations].

In vitro activity of 13 antibiotics and drug preparations as well as some of their combinations was studied with respect to Brucella melitensis. It was shown that the strains of B. melitensis were sensitive to sisomicin, amikacin, gentamicin, cefotaxime, rifaprim +, nitroxoline and trimethoprim.