[Sterilization by ionizing radiations (author's transl)].

The first part summarizes the general characteristics of ionizing radiations and their activity on microorganisms: lethal and mutagenic effects, sensitivity conditions. Different microbial species have different sensitivities: gram negative bacteria are more sensitive (D10 approximately 5-10 Krads), bacterial spores and viruses are more resistant (D10 approximately 1 Megarads). The second part considers the main applications of radiosterilization: some are at present in full development (medical and surgical disposable equipment); others are still at the experimental stage.

[Estimation of the activity of an antiseptic agent on skin microbial flora under various conditions].

The bacterial flora of the skin of the fore-arm was studied in fifteen normal subjects by a modified Williamson and Kligman technique. The quantitative results were in agreement with those found in other laboratories which indicates the reproducibility of the method. The action of an antiseptic containing 0.