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Aeruginocine typing of Pseudomonas aeruginosa
  1. Shriniwas
  1. Department of Microbiology, All-India Institute of Medical Sciences, Ansari Nagar, New Delhi, India


    Aeruginocine typing using eight indicator strains of Wahba on Bacto tryptone-glucose yeast extract Agar (Difco) with an incubation temperature of 32°C was found to be a reproducible and easy method which could be readily adopted by a diagnostic clinical laboratory. The results of aeruginocine typing of 1500 strains of Ps. aeruginosa suggest that hospitals differ in the range and patterns of aeruginocine types of strains isolated in them. In addition to representatives of nine of the 10 pyocine types of Wahba, a large number of strains isolated in India were found to fall into other groups not described in Wahba's system. Hence, 20 new inhibition patterns (aeruginocine types) are proposed.

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