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Director, Division of Microbiology
Director, Medical Microbiology Fellowship Program
Primary Appointment in Pathology; Secondary Appointment in Medicine
The Johns Hopkins Hospital
Department of Pathology
Division of Microbiology
600 North Wolfe Street
Baltimore, MD 21287-7093
Phone: (410) 955-5077
Fax: (410) 614-8087
My research interests include diagnostic test evaluation and development for the detection of microbial pathogens in clinical specimens. Recent projects have included:use of 16S rDNA-sequencing for identification of non-tuberculous Mycobacteria; evaluation of molecular strain typing techniques for epidemiological analysis; development of molecular and non-molecular assays for rapid identification and susceptibility testing of MRSA; evaluation of methods for Clostridium difficile detection
Francis JS, Doherty MC, Lopatin U, Park C, Sinha G, Ross T, Hansel N, Perl T, Ticehurst J, Carroll K, Thomas D, Nueremberger and Bartlett J. 2005. Severe community-acquired pneumonia in healthy adults caused by methicillin-resistant Staphylococcus aureus carrying the Panton-Valentine Leukocidin gene: Case reports from Baltimore, Maryland. Clin Infect Dis 40:100-7.
Flayhart D, Lema C, Borek A and Carroll KC. 2004. Comparison of the BBL CHROMagar Staph aureus agar to conventional media for the detection of methicillin susceptible and methicillin resistant Staphylococcus aureus in clinical respiratory samples. J Clin Microbiol 42:3566-69.
Cloud JL, Croft A, Conville PS, Witebsky FG, Harmsen D, Carroll KC. 2004. Evaluation of partial 16S ribosomal DNA sequencing for identification of Nocardia species by using the MicroSeq 500 system with an expanded database. J Clin Microbiol 42: 578-584.
Cloud J, Neal H, Rosenberry R, Turenne C, Jama M, Hillyard D, Carroll K. 2002. Identification of Mycobacterium spp. using a commercial 16S rDNA sequencing kit and additional sequencing libraries. J Clin Microbiol 40:400-406.