Karin Hoelzer

Karin Hoelzer
Senior Officer
Health Programs
The Pew Charitable Trusts


Karin Hoelzer focuses on research and policies related to foodborne pathogens, the use of antibiotics in animals, and other public health risks related to the food supply for Pew’s safe food and antibiotic resistance projects. 

Before joining Pew, Hoelzer worked at the U.S. Food and Drug Administration, where she developed and led risk assessments and conducted systematic reviews and meta-analyses on a variety of issues, such as drug residues in dairy products and Listeria monocytogenes in retail delicatessens. Hoelzer previously was a research associate at Cornell University, where she traced the transmission of pathogens between livestock and humans.

Hoelzer holds doctorates in veterinary medicine from the University of Veterinary Medicine in Hannover, Germany, and in comparative biomedical sciences from Cornell University. She has received a Morris Animal Foundation fellowship training grant, authored peer-reviewed publications, and is a member of the American Veterinary Medical Association, the International Association for Food Protection, and other professional organizations. She also serves as scientific editor for the Elsevier journal Research in Veterinary Science.