[Comparative analysis of 2 sanitary-bacteriological methods of detecting bacteria of the Escherichia coli group in the environment].

A total of 965 parallel tests for coli bacilli were carried out using the wash-out or print methods in the course of sanitary and epidemiologic inspection of different objects. The methods used in the study were equally sensitive and provided compatible results which were in good correlation. The print method with bacterial tests is more rapid (by 24 hours) and helps detect other bacteria which grow in Endo's medium; moreover, it is three times cheaper than the labor-consuming wash-out method.

[Etiopathogenetic approach to the treatment of viral-bacterial pneumonias].

The efficacy of aerosols of leukocytal interferon used in complex with antibacterial and other medicamentous agents was studied during influenza epidemic in 1975 due to Port-Chalmers virus of influenza A with increased numbers of viral-bacterial pneumonia. The viral-sta-phylococcal etiology of the infection was confirmed in 80 per cent of the cases under stationary conditions. Various microorganism and most often Staph aureus were isolated in addition to the viruses from the patient's sputum and washings and their antibioticograms were determined.

[Pigment formation and other biological properties of staphylococci].

A comparison was made of the pigment-forming capacity and the enzymatic activity, growth rate, virulence and sensitivity to antibiotics and egg lysozyme in 397 pigment, 203 pigment-free strains of staphylococci and 24 pigment-free Staph aureus mutants. Pigment formation did not always correlate with the general biological activity of the cultures, the rate of their growth and the sensitivity to antibiotics and lysozyme. Pigment-free staphylococcus mutants retained the principal properties of the initial strains (including the virulence and sensitivity to antibiotics and egg lysozyme) more frequently.