Parallel study of two techniques for identification of gram negative anaerobic bacilli.

The authors have used two different methods for the identification of 45 strains of stric anaerobic gram negative rods: a study of biochemical characters by the API 20 anaerobic kit, and system proposed by SUTTER and FINEGOLD (susceptibility to discs loaded with antibiotics associated with some simple biochemical characters). A good correlation has been observed between those two techniques. However, a precise diagnostic can be given only by a whole study of biochemical characters, as proposed by the system API 20 Anaerobic.