Affiliated Faculty

Photo of Claire Andreasen

Claire Andreasen, DVM, PhD, DACVP

Department of Veterinary Pathology
1790B Lloyd Veterinary Medical Center

Dr. Claire Andreasen received her DVM degree from Texas A&M in 1982, was an associate veterinarian from 1982-1985, and then completed a pathology residency, MS (1987) and PhD (1990) from the University of Georgia, Department of Veterinary Pathology, and board certification as a Diplomate of the American College of Veterinary Pathologists (ACVP). Dr. Andreasen was a faculty member at Oregon State University College of Veterinary Medicine before coming to the Iowa State University College of Veterinary Medicine in 1996. She is currently a Department Chair, Professor, and Pathology Laboratory Director. She has authored or co-authored 60 peer-reviewed journal articles, 70 abstracts and proceedings, 18 book chapters, was section editor for 2 textbooks, and on the board of scientific reviewers for journals. She received the Pfizer Award for Research Excellence in 1994, and Student Chapter of the American Veterinary Medical Association Clinical Sciences Teaching Award in 2001. Her areas of expertise include host-cell interactions during infectious diseases, especially in poultry, and clinical pathology and diagnostic pathology education.


Photo of Carrie Hammer

Carrie Hammer, DVM, PhD

Assistant Professor
North Dakota State University

Dr. Hammer received a BS degree in Animal Science in 1996 and an M.S. degree in Nutritional Physiology in 1998 from Iowa State University. She then enrolled in the ISU College of Veterinary Medicine and pursued a dual degree, graduating with her DVM in 2002 and a PhD in Animal Physiology in 2003. After graduation, Dr. Hammer worked for APC, Inc. as a technical service veterinarian where she provided technical advice and supervised research projects relating to companion animal, equine, and bovine health. She worked as a veterinary specialist for the CFSPH for 15 months prior to accepting her current position with North Dakota State.


Photo of Jesse M. Hostetter

Jesse M. Hostetter, DVM, PhD, DACVP

Assistant Professor
Department of Veterinary Pathology
2720 College of Veterinary Medicine

Dr. Hostetter received his DVM from Iowa State University in 1991, and practiced in small animal medicine for 5 years following graduation. He returned to Iowa State University for a combined PhD/Residency program in veterinary pathology. He finished his PhD in 2000 and became a Diplomate of the American College of Veterinary Pathologists (Anatomic Pathology) in 2001. Following his pathology training Dr. Hostetter joined the Department of Veterinary Pathology at Iowa State University, where he is currently an Assistant Professor. He is one of 6 diagnostic pathologists in the department. In addition, he has an active research program which trains veterinary pathology and immunobiology graduate students. His research interest is in the innate immune responses to intracellular pathogens. His current research involves antigen presenting cell function during Mycobacterium avium subspecies paratuberculosis (Map) infection.


Photo of Dušan Palić

Dušan Palić, DVM, MVSc, PhD

Professor and Chair
Department of Fish Diseases and Fisheries Biology Faculty of Veterinary Medicine, Ludwig-Maximilian University Munich

+49 (0)89.2180.2

Dr. Dušan Palić received his DVM and MS degrees in Veterinary Preventive Medicine from Belgrade University, Serbia, and PhD in Immunobiology and Fisheries Biology at Iowa State. Dr. Palić is an assistant professor at the Department of Biomedical Sciences, and affiliated with Departments of Veterinary Microbiology and Preventive Medicine and Natural Resources Ecology and Management. He served as a veterinary specialist in aquatic animal medicine for the Center for Food Security and Public Health from 2005 to 2007, and is now affiliated faculty involved in developing National Veterinary Accreditation Plan modules for aquatic animal medicine and collaborative research projects. Dušan does research and teaching in areas of innate immunology of fish, mammals, and birds; aquatic animal health; and ecosystem health. Current projects in his lab include: dietary immunomodulation of β-glucans and yeast compounds in fish; neutrophil extracellular trap formation in fish, birds and mammals; heterophil function in chickens exposed to Salmonella infection; effects of tulathromycin on bovine neutrophils; development of zebrafish fluorescent neutrophil research model; effects of field runoff to neutrophil function in fish and development of GIS flow path analysis model; and stress effects on immunology of fish species of special concern. Teaching duties include AEcl/VDPAM 401 Introduction to Aquatic Animal Medicine, and HON322A Concepts of Ecosystem Health.


Photo of Christine Petersen

Christine Petersen, DVM, PhD

Associate Professor
Department of Epidemiology
S429 College of Public Health, University of Iowa

Dr. Petersen received her DVM from Cornell University in 1998. While in veterinary school she spent a summer as a research scientist at the International Livestock research Institute in Nairobi, Kenya, studying African Trypanosomiasis and was a paid consultant to the Division of Parasitic Diseases at the Centers for Disease Control, establishing a treatment protocol for HIV patients co-infected with Trypanosoma cruzi. After a year of small animal practice she was offered a position at the Harvard School of Public Health to pursue the PhD. Her research has focused on host-pathogen interactions of tropical zoonotic protozoal diseases. While at HSPH she worked as a post-doctoral fellow on the pathogenesis of Trypanosoma cruzi infection in heart muscle cells. Her current work at ISU continues investigation of host-pathogen interactions, specifically the interaction of host dendritic cells, important in establishing a productive immune response, with the parasite Leishmania amazonensis. She has been affiliated with the staff of CFSPH since 2004.


Photo of Alex Ramirez

Alex Ramirez, DVM, MPH, DACVPM

Assistant Professor
Department of Veterinary Diagnostic and Production Animal Medicine
2231 Lloyd Veterinary Medical Center

Dr. Ramirez obtained a BS in Animal Science in 1989 and his DVM degree in 1993, both from Iowa State University. He practiced for 10 years in a predominantly large animal clinic in Cherokee, Iowa. He received his MPH from the University of Iowa in 2004 though the Center for Food Security and Public Health's MPH program. Dr. Ramirez is originally from Guadalajara, Mexico. He ia an Assistant Professor in the Department of Veterinary Diagnostic and Production Animal Medicine at Iowa State University where he specializes in public health, zoonosis, and swine production. He is currently pursuing a PhD in Veterinary Microbiology with an emphasis in Preventive Medicine.


Photo of Katie Steneroden

Katie Steneroden, DVM, MPH, PhD, DACVPM

Dr. Katie Steneroden received her DVM degree from the University of Minnesota College of Veterinary Medicine in 1998 and practiced in mixed animal, small animal, shelter and alternative medicine in the Pacific Northwest. In 2003 she completed her MPH degree from the University of Iowa while working for the Center for Food Security and Public Health at Iowa State University. Katie earned her PhD in Veterinary Epidemiology from Colorado State University in 2009 while working for the Animal Population Health Institute and became a diplomat of the American College of Veterinary Preventive Medicine in 2011. Katie has work domestically and internationally on research and veterinary public health projects relating to infectious and zoonotic disease, adapting livestock systems to climate change, technical writing, capacity building and enhancing national animal health programs in Egypt, Nepal, Africa and the former soviet countries of Azerbaijan, Georgia, and Armenia.