Sch 56592 is a new triazole derivative that possesses potent, broad-spectrum antifungal activity. We evaluated the in vitro activity of Sch 56592 compared with that of itraconazole, amphotericin B and 5-fluorocytosine against 51 clinical isolates of filamentous fungi, including Aspergillus flavus (10), A. fumigatus (12), Fusarium spp.
View Article and Find Full Text PDFWe compared the yeast nitrogen base (YNB) broth microdilution method with the National Committee for Clinical Laboratory Standards (NCCLS) M27-A microdilution reference method for measuring the in vitro susceptibility of Cryptococcus neoformans isolates to fluconazole. A total of 149 isolates of C. neoformans var.
View Article and Find Full Text PDFA method using a commercially prepared colorimetric microdilution panel (ASTY; Kyokuto Pharmaceutical Industrial Co., Ltd.) was compared in four different laboratories with the National Committee for Clinical Laboratory Standards (NCCLS) reference microdilution method by testing 802 clinical isolates of Candida spp.
View Article and Find Full Text PDFThe performance of the Etest for fluconazole susceptibility testing of 402 yeast isolates was assessed against the National Committee for Clinical Laboratory Standards (NCCLS) microdilution broth method. The NCCLS method employed RPMI 1640 broth medium, and MICs were read after incubation for 48 h at 35 degrees C. Etest MICs were determined with RPMI agar containing 2% glucose (RPG), Casitone agar (CAS), and Mueller-Hinton agar (MHA) and were read after incubation for 48 h at 35 degrees C.
View Article and Find Full Text PDFAn international program of surveillance of bloodstream infections (BSIs) in the United States, Canada, and South America between January and December 1997 detected 306 episodes of candidemia in 34 medical centers (22 in the United States, 6 in Canada, and 6 in South America). Eighty percent of the BSIs were nosocomial and 50% occurred in patients hospitalized in an intensive care unit. Overall, 53.
View Article and Find Full Text PDFAntimicrob Agents Chemother
June 1998
We have previously reported poor correlation between the in vitro fungicidal activity of LY303366 and MIC results in RPMI medium based upon the manufacturer's suggested susceptibility endpoint, lack of visual growth. Additionally, we have noted a significant trailing effect with LY303366 when MICs are determined in RPMI medium. These observations have led us to evaluate an alternative susceptibility endpoint for LY303366, an 80% reduction in growth compared with control (similar to that utilized for azoles).
View Article and Find Full Text PDFIn a survey of bloodstream infection (BSI) isolates across the continental United States, 162 Candida albicans isolates were fingerprinted with the species-specific probe Ca3 and the patterns were analyzed for relatedness with a computer-assisted system. The results demonstrate that particular BSI strains are more highly concentrated in particular geographic locales and that established BSI strains are endemic in some, but not all, hospitals in the study and undergo microevolution in hospital settings. The results, however, indicate no close genetic relationship among fluconazole-resistant BSI isolates in the collection, either from the same geographic locale or the same hospital.
View Article and Find Full Text PDFInfect Control Hosp Epidemiol
May 1998
Candida lusitaniae is an increasingly important nosocomial bloodstream pathogen. Epidemiological investigation and molecular typing techniques identified three neonates infected with identical strains of C lusitaniae that were distinguished readily from epidemiologically unrelated strains from other locations in the hospital. The results of this study provide evidence for nosocomial transmission of C lusitaniae in a neonatal intensive-care unit and suggest that these infants are at increased risk for infection with this agent.
View Article and Find Full Text PDFSurveillance of nosocomial blood stream infections (BSI) in the USA between April 1995 and June 1996 revealed that Candida was the fourth leading cause of nosocomial BSI, accounting for 8% of all infections. Fifty-two percent of 379 episodes of candidemia were due to Candida albicans. In vitro susceptibility studies using the 1997 National Committee for Clinical Laboratory Standards reference method demonstrated that 92% of C.
View Article and Find Full Text PDFThe National Epidemiology of Mycoses Survey (NEMIS) involves six academic centers studying fungal infections in surgical and neonatal intensive care unit (ICU) patients. We studied variation in species and strain distribution and anti-fungal susceptibility of 408 isolates of Candida spp. Candida spp.
View Article and Find Full Text PDFAm J Public Health
January 1998
Objectives: Pediatric chronic physical illness and adult psychiatric disorders are substantial sources of burden for family care-takers, but little attention has been paid to parental burden resulting from children's or adolescents' psychiatric disorders. This paper describes the predictors of perceived parental burden and its impact on the use of specialty mental health and school services.
Methods: A representative general population sample of 1015 9-, 11-, and 13-year-olds and their parents completed structured psychiatric diagnostic interviews and the Child and Adolescent Burden Assessment.
LY303366 and MK-0991 (previously L-743,792) are new echinocandin derivatives with excellent broad-spectrum antifungal activity. We investigated the in vitro activity of LY303366, MK-0991, itraconazole, amnphotericin B, and 5-flucytosine against 51 clinical isolates of filamentous fungi, including Aspergillus flavus (10), A. fumigatus (12), Fusarium spp.
View Article and Find Full Text PDFDiagn Microbiol Infect Dis
February 1998
A national surveillance program of nosocomial blood stream infections (BSI) in the USA between April 1995 and June 1996 revealed that Candida was the fourth leading cause of nosocomial BSI, accounting for 8% of all infections. Forty-eight percent of 379 episodes of candidemia were due to species other than Candida albicans. The rank order of non-C.
View Article and Find Full Text PDFAntimicrob Agents Chemother
January 1998
Voriconazole (formerly UK-109,496) is a new monotriazole antifungal agent which has potent activity against Candida, Cryptococcus, and Aspergillus species. We investigated the in vitro activity of voriconazole compared to those of fluconazole, itraconazole, amphotericin B, and flucytosine (5FC) against 394 bloodstream isolates of Candida (five species) obtained from more than 30 different medical centers. MICs of all antifungal drugs were determined by the method recommended by the National Committee for Clinical Laboratory Standards using RPMI 1640 test medium.
View Article and Find Full Text PDFDiagn Microbiol Infect Dis
November 1997
Candida parapsilosis, an important nosocomial pathogen and the most common species of Candida found on the hands of health care workers, is a rare cause of prosthetic valve endocarditis (PVE). From March through June 1994, four cases of C. parapsilosis PVE were diagnosed at a 400-bed community hospital.
View Article and Find Full Text PDFFive Candida albicans colonies from each infection in AIDS patients receiving fluconazole therapy for oropharyngeal candidiasis over a 2-year period were evaluated by antifungal susceptibility testing and DNA subtyping, and the results were correlated with clinical response to determine the occurrence of clinically significant selection of more-resistant C. albicans over multiple infections. A total of 534 C.
View Article and Find Full Text PDFAntimicrob Agents Chemother
April 1997
LY303366 is a new semisynthetic echinocandin derivative with potent, broad-spectrum fungicidal activity. We investigated the in vitro activity of LY303366, amphotericin B, flucytosine (5FC), fluconazole, and itraconazole against 435 clinical yeast isolates (413 Candida and 22 Saccharomyces cerevisiae isolates) obtained from over 30 different medical centers. MICs for all five antifungal agents were determined by the National Committee for Clinical Laboratory Standards method with RPMI 1640 test medium.
View Article and Find Full Text PDFSch 56592 is a new triazole agent with potent, broad-spectrum antifungal activity. The in vitro activities of Sch 56592, itraconazole, fluconazole, amphotericin B, and flucytosine (5-FC) against 404 clinical isolates of Candida spp. (382 isolates) and Saccharomyces cerevisiae (22 isolates) were investigated.
View Article and Find Full Text PDFA multicenter study was conducted to expand the generation and analysis of data that supports the proposal of a reference method for the antifungal susceptibility testing of filamentous fungi. Broth microdilution MICs of amphotericin B and itraconazole were determined in 11 centers against 30 coded duplicate pairs of Aspergillus spp., Fusarium spp.
View Article and Find Full Text PDFInfect Control Hosp Epidemiol
December 1996
Fifteen of 20 hemodialysis patients who carried Staphylococcus aureus in their nares also carried the organism on their hands; 2 of 20 patients who did not carry S aureus in their nares carried S aureus on their hands (P < .001). Eighty-seven percent of patients who carried S aureus in their nares and on their hands carried the same strain at both sites.
View Article and Find Full Text PDFFungal arthritis in pediatric patients is rare and is most often associated with hematogenous spread to the affected joint. It is generally seen concomitant with, or shortly after, fungemia. We report a case of an immunocompetent patient in whom candidal arthritis developed 1 year after initial fungemia.
View Article and Find Full Text PDFA multicenter study was performed to establish the interlaboratory reproducibility of Etest, to provide an additional comparison of Etest MICs with reference broth macrodilution MICs, and to develop some tentative quality control (QC) guidelines for using Etest for antifungal susceptibility testing of Candida spp. Two QC strains, Candida parapsilosis ATCC 22019 and Candida krusei ATCC 6258, were tested by Etest against amphotericin B, fluconazole, flucytosine, itraconazole, and ketoconazole in each of four laboratories. The QC strains were tested 20 times each against the five antifungal agents by using a common lot of RPMI agar.
View Article and Find Full Text PDFDiagn Microbiol Infect Dis
June 1996
A commercially-prepared dried broth microdilution panel (Sensititre) was compared with a reference microdilution method for antifungal susceptibility testing of two reference yeast strains and 98 clinical isolates of Candida spp. The antifungal agents tested include 5-fluorocytosine (5FC), fluconazole, itraconazole, and D0870. Microdilution testing was performed according to National Committee for Clinical Laboratory Standards (NCCLS) recommendations.
View Article and Find Full Text PDFWe have developed a microdilution method for measuring the susceptibility of Cryptococcus neoformans to fluconazole. The present study evaluated the interlaboratory agreement of the results for the microdilution method obtained at three different sites and compared this method with the National Committee for Clinical Laboratory Standards M27-P reference method. Excellent interlaboratory agreement among the results obtained at the three sites was achieved with this method (83 and 96% agreement within 1 and 2 log2 dilutions, respectively).
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