Dan Dressel

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Infections due to multidrug-resistant pneumococci are a growing concern. Through December 1995, over 85% of isolates recovered from our patients in Chicago, Illinois, were fully susceptible to penicillin, and only a rare resistant strain was recovered from blood or cerebrospinal fluid (CSF). In December 1995, we began to observe bloodstream infections due(More)
Between December 1, 1993, and December 1, 1996, we tested 4,411 isolates of Enterococcus sp. at gentamicin concentrations of 500 micrograms/mL and 2000 micrograms/mL using agar dilution to phenotypically categorize them into 3 groups: those with a MIC < or = 500 micrograms/mL (n = 3,132; 71%); a MIC > 500, but < or = 2000 micrograms/mL (n = 441; 10%); and(More)
Bactericidal testing historically has exhibited variable reproducibility, even when prior standardized methods were employed. Several modifications to the National Committee for Clinical Laboratory Standards (NCCLS) broth macrodilution method are proposed to improve reproducibility. Recommended changes from the approved NCCLS guidelines (M21-A and M26-A)(More)
Detection of microbial sepsis is an important aspect of medical practice. To facilitate the recovery of bacteria and fungi we evaluated 10,933 complete blood culture sets integrating the automated ESP system (Difco) with a manual system using the Isolator (Wampole) and Thiol broth bottle (Difco). To improve compliance with the recommended procedure for(More)
An exploratory investigation was conducted on the liability and control risks posed to U.S. organizations by the adoption of OSS. Three primary risks associated with the use of OSS were identified: upstream intellectual property concerns, viral software issues, and non-infringement warranties or intellectual property (IP) indemnity issues. In the context of(More)
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