[Drug resistance of staphylococci to chemotherapeutic preparations].

A total of 640 strains of pathogenic staphylococci isolated from patients in Kiev in 1971--1975 were studied. High percentage of strains resistant to benzylpenicillin, tetracycline, streptomycin, chloramphenicol and ampicillin was registered. Strains resistant to erythromycin and oleandomycin amounted to 34.

[Experimental study of the effect of a number of chemotherapeutic preparations on the intracellular growth of dysentery bacteria, and their interaction with epithelial cells].

The effect of some chemotherapeutics on intercellular growth of Sh. sonnei and their capacity for penetration into cells Hep-2 and primarily triptinized cells of the monkey kidneys was studied. By the character of their effect the drugs were divided into 3 groups.

[Development of drug resistance and the cross resistance in Shigella to certain chemotherapeutic preparations in vitro].

A total of 700 Shigella cultures isolated in different regions of the Ukraine in 1974 and occasionally in 1971-1973 were studied. No cultures resistant to furazolidone or enteroseptol were found. Under the experimental conditions resistance to nitrofuran and especially oxycholine preparations in Shigella developed slowly when the cultures were passaged in broths with increasing concentrations of the drugs.

Eruption rates of human upper third molars.

Human maxillary third molars have been observed to have maximum rates of eruption of approximately 1 mm/2 mo. Rates of less than 1 mm/6 mo have also been recorded. Maximum rates of eruption were associated with spacing of the dentition.