[Salmonella sensitivity to antibiotics].

Antibiotic sensitivity of 142 strains of Salmonella isolated from patients within 1974-1976 was studied. An increase in the number of the pathogenic microbes resistant to streptomycin was noted. Rare isolates highly resistant to ampicillin were registered.

[Effect of the combined action of rimantadin and dimethyl sulfoxide on phage reproduction].

Separate and combined action of Dimethylsulfoxid (DMSO) and Rimantadin on the reproduction of phages T--3, T--4, T--7 and lambda was studied. The maximum activation of reproduction of phages T--3 and T--7 by DMSO was observed for 6 minutes of latent period. At the same time this compound did not render the action on reproduction phages T--4 and, because they utilize cell RNA-polimerase.

[Study of the virustatic action of rimantadine based on a phage-bacterium model].

The action of rimantadin on the lambda phages was studied. The maximal inhibitory effect on the compound was observed on the 1st-6th minutes after the infection. There was no such effect on the T-4 and lambda phage replication.

[Elaboration of chloramphenicol acetyltransferase by cells of E. coli K-12 under conditions altering the intracellular concentration of cyclic adenosine-3',5'-monophosphate].

The influence of cAMP, ACTH and glucose on the stimulation of chloramphenicol acetyl transferase synthesis in the cells of E. coli CSH-2/R222 and E. coli WZ-78/R222.