[Use of the A-1 and A-2 elective nutrient media for isolating Ps. aeruginosa].

A total of 327 samples of material obtained from patients with surgical infection and 434 samples taken from various objects of the hospital environment were studied with the use of elective culture media A-1 and A-2. 72 cultures of Ps. aeruginosa were isolated, their biochemical properties and the character of their growth were studied; and the clinical strains were also tested for sensitivity to phages and antibiotics. In 677 cases the capacity of Ps. aeruginosa to proliferate in media A-1 and A-2 was compared with their capacity to proliferate in other culture media (blood agar, serum agar, Levine's medium). The results of this study showed considerable advantages of the elective culture media under study for the isolation of pseudomonades, especially from the objects of the hospital environment.