[Comparison of the results of antibiograms obtained from blood culture broth and after isolation on agar media with the Autobac 1].

The authors compare the results of antibiotic sensitivity tests performed within 4 hours with the aid of the Autobac 1 machine, using blood culture medium and following isolation on agar plates. There was concordance in about 90 p. cent of cases. The first test is not suitable for sensitivity to trimethoprim and the beta-lactamines, as was already observed in the study using the MS-2 machine. The authors discuss the various sources of error and compare the results obtained from the two machines.