Education
-
Ph.D. Population Medicine and Epidemiology, Cornell University 2010
-
D.V.M. Veterinary Medicine, Cornell University 1996
-
B.A. Biology, Kenyon College 1992
Scholarly Interests
My research focuses on the use of analytic and molecular epidemiology to study Salmonella and other foodborne pathogens at the pre-harvest level. Work is targeted at minimizing zoonotic transmission of pathogens that threaten food safety, as well as reducing disease burden among veterinary species. Additional areas of interest include emerging infectious diseases, antimicrobial resistance, and hospital biosecurity.
Publications
Agar Disk Diffusion and Automated Microbroth Dilution Produce Similar Antimicrobial Susceptibility Testing Results for Salmonella Serotypes Newport, Typhimurium, and 4,5,12:i-, But Differ in Economic Cost.
Hoelzer K, Cummings KJ, Warnick LD, Schukken YH, Siler JD, Gröhn YT, Davis MA, Besser TE, Wiedmann M.
Foodborne Pathog Dis. 2011 Aug; .
PMID: 21877930 [PubMed - as supplied by publisher]
Salmonella Cerro isolated over the past twenty years from various sources in the US represent a single predominant pulsed-field gel electrophoresis type.
Hoelzer K, Cummings KJ, Wright EM, Rodriguez-Rivera LD, Roof SE, Switt AI, Dumas N, Root T, Schoonmaker-Bopp DJ, Grohn YT, Siler JD, Warnick LD, Hancock DD, Davis MA, Wiedmann M.
Vet Microbiol. 2011 Jun; 150(3-4):389-93.
PMID: 21349663 [PubMed - in process]
The prevalence of multidrug resistance is higher among bovine than human Salmonella enterica serotype Newport, Typhimurium, and 4,5,12:i:- isolates in the United States but differs by serotype and geographic region.
Hoelzer K, Soyer Y, Rodriguez-Rivera LD, Cummings KJ, McDonough PL, Schoonmaker-Bopp DJ, Root TP, Dumas NB, Warnick LD, Gröhn YT, Wiedmann M, Baker KN, Besser TE, Hancock DD, Davis MA.
Appl Environ Microbiol. 2010 Sep; 76(17):5947-59.
PMID: 20639364 [PubMed - indexed for MEDLINE]