Alexander von Graevenitz

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Fifty participants in the Swiss External Quality Control Program in Bacteriology/Mycology received a diagnostic sample containing Mycobacterium fortuitum. Only 31 used some sort of acid-fast stains, and 13 reported the diagnosis of M. fortuitum or rapidly growing mycobacteria. We conclude that the presence of 'rapid growers' in routine bacteriology samples(More)
The patient was a 36-year-old male working in a flower shop located in Schaffhausen neai the German border of Switzerland. In March 1986 he developed a nephrotic syndrome leading rapidly to terminal renal insufficiency. In January 1987 he was started on CAPD with the Y-connecting 5F-System (Fresenius, FRG). In October and November 1987 as well as in March(More)
Four commercial slides were compared with in-house slides for the detection of immunoglobulin G (IgG) againstBartonella henselae in 58 healthy persons from a rural region by an indirect immunofluorescence assay. MRL-BA slides (MRL Diagnostics, USA) and Virion slides (Virion, Switzerland) with agar-derivedBartonella henselae showed IgG titers of ≥ 1∶256 in(More)
Corynebacterium group JK is described as the aetiologic agent of a second episode of peritonitis which occurred after a period of antibiotic treatment for likely endogenous peritonitis. Inclusion of vancomycin is suggested for treatment of continuous ambulatory peritoneal dialysis (CAPD) peritonitis in patients colonized by these multiresistant bacteria.
Clinical Microbiology Institute, PO Box 947, Tualatin, Oregon 97602, USA. 11. Zinneman, H. H., Hall, W.H., Hong, L., Seal, U.S.: Binding of erythromycin, novobiocin, chloramphenicol, chlortetracycline, and nitrofurantoin by serum proteins. Antimicrobial Agents and Chemotherapy 1963, 1962: 637-643. 12. Labro, M.T., Amit, N., Babin-Chevaye, C., Hakim, J.:(More)
 The natural susceptibility of 20 strains each of Brevibacterium casei (formerly CDC coryneform groups B-1 and B-3), Dermabacter hominis (formerly CDC coryneform groups 3 and 5), and Turicella otitidis (formerly coryneform group ANF-1-like) isolated from clinical specimens to 71 antibiotics was investigated. Susceptibility testing was carried out with a(More)
A system for the identification of non-fermentative gram-negative rods from clinical specimens is proposed. It uses blood agar and MacConkey agar for their isolation, and divides them into oxidase-positive and oxidase-negative groups. A few sensitivity tests and a maximum of eight media are used for the diagnosis which can be obtained within 24–48 hours.
The generaProteus, Providencia, andSerratia are known to have consistently shown resistance to one or several of the following antimicrobials: the polymyxins, ampicillin, the cephalosporins, the tetracyclines, and nitrofurantoin. Resistance to other drugs is erratic. In an attempt to investigate the diagnostic possibilities of resistance to colistin,(More)
Corynebacterial isolates, obtained by selective and non-selective media from conjunctival swabs, were speciated by using two recently developed systems. All 25 strains from 92 individuals, as well as 12 strains from a previous similar study, belonged to lipophilic species. The significance of this unusual finding is discussed.